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an
te
n
n
a
h
as
a
w
id
e
b
an
d
w
id
th
o
f
3
0
2
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z
w
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th
ce
n
ter
f
r
eq
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e
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y
of
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4
GHz
,
an
d
r
ef
lectio
n
c
o
ef
f
icie
n
t
o
f
-
2
3
.
2
6
d
B
.
Fu
r
th
er
m
o
r
e
,
G
u
p
ta
[
7
]
an
d
Had
ar
ig
[
8
]
in
v
es
tig
ated
b
a
n
d
w
id
th
e
n
h
a
n
ce
m
e
n
t
o
f
m
i
cr
o
s
tr
ip
p
atch
an
ten
n
as
b
y
i
m
p
le
m
e
n
ti
n
g
E
B
G
s
tr
u
ct
u
r
es
.
T
h
is
p
r
o
p
o
s
ed
an
ten
n
a
h
as
a
ce
n
ter
f
r
eq
u
e
n
c
y
o
f
1
0
GHz
an
d
2
.
4
GHz
f
o
r
X
-
b
an
d
R
ad
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an
d
VHF
R
FID
,
r
esp
ec
ti
v
el
y
.
T
h
e
n
,
t
o
r
ed
u
ce
th
e
s
ize
o
f
t
h
e
a
n
ten
n
a,
R
o
th
w
e
ll
an
d
R
ao
u
l
O
[
2
1
]
p
r
o
p
o
s
ed
a
m
eta
m
ater
ial
s
tr
u
ct
u
r
e.
T
h
e
m
eta
m
ater
ial
m
icr
o
s
tr
ip
s
tr
u
ctu
r
e
h
a
s
ad
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a
n
ta
g
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s
u
c
h
as
co
m
p
ac
t
s
ize
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n
d
b
r
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ad
b
an
d
.
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w
e
v
er
,
t
h
e
s
t
r
u
ctu
r
e
h
as
co
m
p
lex
g
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m
etr
y
,
an
d
it
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d
if
f
ic
u
lt
to
f
ab
r
icate
.
T
h
en
,
H.
Mo
s
allae
i
an
d
K.
Sar
ab
an
d
i
[
2
2
]
p
r
o
p
o
s
ed
b
an
d
w
id
t
h
en
h
an
ce
m
e
n
t
b
y
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s
i
n
g
a
r
ea
ctiv
e
i
m
p
ed
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ce
s
u
b
s
tr
ate
(
R
I
S)
.
T
h
is
m
et
h
o
d
s
u
cc
ee
d
s
to
in
cr
e
ase
th
e
b
an
d
w
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d
t
h
o
f
t
h
e
an
te
n
n
a
an
d
r
ed
u
ce
an
te
n
n
a
s
ize.
Mo
r
eo
v
er
,
a
f
a
s
cin
at
in
g
m
et
h
o
d
w
as
p
r
o
p
o
s
ed
b
y
Mo
h
a
m
ad
i
[
1
8
]
.
I
t
in
v
e
s
ti
g
ated
t
h
e
b
an
d
w
id
t
h
en
h
a
n
ce
m
en
t
o
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n
te
n
n
a
f
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r
L
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n
g
T
er
m
E
v
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l
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tio
n
(
L
T
E
)
tech
n
o
lo
g
y
w
it
h
m
u
ltip
le
i
n
p
u
t
m
u
l
tip
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u
tp
u
t
(
MI
MO
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ap
p
licatio
n
.
He
in
tr
o
d
u
ce
d
th
e
b
asic
m
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m
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d
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t
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n
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a,
b
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t
it
w
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s
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till
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d
r
a
w
b
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k
s
u
c
h
as
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m
p
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ip
s
tr
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ct
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r
e.
Oth
er
m
et
h
o
d
s
in
cl
u
d
e
,
G
-
s
h
ap
ed
b
an
d
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n
o
tc
h
ed
an
ten
n
a
[
2
3
]
,
d
ielec
tr
ic
r
eso
n
ato
r
an
te
n
n
a
(
DR
A
)
[
2
4
]
,
an
d
U
-
s
h
ap
ed
s
l
ot
an
ten
n
a
[
2
5
]
.
T
h
e
DR
A
an
te
n
n
a
t
h
at
i
s
p
r
o
p
o
s
ed
b
y
[
2
4
]
h
as g
o
o
d
b
an
d
w
i
d
th
. H
o
w
ev
er
,
t
h
e
a
n
ten
n
a
s
tr
u
c
tu
r
e
is
s
till
lar
g
e.
As
t
h
e
n
o
v
elt
y
,
to
e
n
h
an
ce
b
a
n
d
w
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n
d
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ce
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te
n
n
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ze
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elev
ed
h
al
f
-
c
u
t
m
icr
o
s
tr
i
p
s
tr
u
ct
u
r
e
is
p
r
o
p
o
s
ed
in
t
h
is
p
ap
er
.
Fu
r
t
h
er
,
th
is
p
r
o
p
o
s
ed
an
te
n
n
a
s
tr
u
ctu
r
e
w
ill
b
e
ap
p
lied
to
m
u
lt
ip
le
in
p
u
t
m
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ltip
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o
u
tp
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t
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MO
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an
te
n
n
a
2
2
.
T
h
er
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o
r
e,
th
is
r
esear
ch
w
a
s
in
v
e
s
ti
g
ated
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n
v
en
t
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al
cir
c
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lar
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ap
e
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te
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cir
cu
lar
s
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ap
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elev
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te
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d
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cu
lar
s
h
ap
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d
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ten
n
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B
S
A
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as
Mo
d
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d
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Mo
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ti
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An
FR
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ate
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4
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ick
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s
h
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6
m
m
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tan
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0
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5
w
a
s
u
s
ed
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I
n
b
r
ief
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T
ab
le
1
.
p
r
o
v
id
es
th
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ch
p
o
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itio
n
o
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th
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s
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ap
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m
p
ar
e
to
an
o
th
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b
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d
w
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d
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h
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c
e
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en
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n
d
m
in
ia
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r
izatio
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t
h
e
a
n
te
n
n
a
.
T
ab
le
1
.
T
h
e
R
esear
ch
P
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s
itio
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o
f
B
an
d
w
id
t
h
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n
h
an
ce
m
e
n
t
a
n
d
M
in
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u
r
izatio
n
o
f
t
h
e
A
n
t
en
n
a
R
ef
.
n
o
M
e
t
h
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e
n
t
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r
F
r
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q
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r
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l
e
ss
T
e
c
h
n
o
l
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y
B
a
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d
w
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t
h
En
h
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M
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r
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z
a
t
i
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n
M
I
M
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p
p
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c
a
t
i
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n
[
6
]
D
GS
2
.
4
G
H
z
W
L
A
N
y
e
s
-
-
[
7
]
EB
G
10
G
H
z
X
-
b
a
n
d
R
a
d
a
r
y
e
s
-
-
[
8
]
EB
G
2
.
4
G
H
z
R
F
I
D
y
e
s
-
-
[
9
]
P
a
r
a
si
t
i
c
P
a
t
c
h
8
.
5
G
H
z
X
-
b
a
n
d
y
e
s
-
-
[
1
0
]
P
a
r
a
si
t
i
c
P
a
t
c
h
1
2
0
M
H
z
V
H
F
R
F
I
D
y
e
s
[
1
1
]
M
e
t
a
m
a
t
e
r
i
a
l
1
.
9
G
H
z
G
S
M
y
e
s
-
-
[
1
2
]
M
e
t
a
m
a
t
e
r
i
a
l
B
i
l
a
y
e
r
2
.
6
G
H
z
LT
E
y
e
s
-
-
[
1
3
]
M
o
n
o
p
o
l
e
S
l
o
t
4
.
4
G
H
z
W
i
M
A
X
y
e
s
-
-
[
1
4
]
T
-
sh
a
p
e
d
S
l
o
t
6
.
7
G
H
z
U
W
B
y
e
s
-
-
[
1
5
]
D
i
e
l
e
c
t
r
i
c
S
l
o
t
1
1
.
2
5
G
H
z
X
-
b
a
n
d
y
e
s
-
-
[
1
6
]
P
o
l
y
m
e
r
i
c
G
r
i
d
2
6
.
8
G
H
z
5G
y
e
s
-
-
[
1
7
]
S
p
i
r
a
l
S
p
l
i
t
R
i
n
g
5
.
8
G
H
z
W
L
A
N
y
e
s
-
-
[
1
8
]
Je
r
u
sal
e
m
C
r
o
ss
-
S
h
a
p
e
d
5.
8
G
H
z
W
L
A
N
y
e
s
-
-
[
1
9
]
C
h
a
r
a
c
t
e
r
i
st
i
c
M
o
d
e
s
1
.
9
G
H
z
LTE
y
e
s
y
e
s
[
2
0
]
P
a
r
a
si
t
i
c
P
a
t
c
h
2
.
6
G
H
z
LTE
y
e
s
-
y
e
s
[
2
1
]
M
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t
a
m
a
t
e
r
i
a
l
2
.
6
G
H
z
LTE
-
y
e
s
-
[
2
2
]
R
I
S
1
.
9
G
H
z
W
C
D
M
A
y
e
s
y
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s
-
[
2
3
]
G
-
sh
a
p
e
d
b
a
n
d
-
n
o
t
c
h
e
d
7
.
7
5
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H
z
U
W
B
-
-
y
e
s
[
2
4
]
D
R
A
3
0
G
H
z
5G
-
-
y
e
s
[
2
5
]
U
-
sh
a
p
e
d
S
l
o
t
3
G
H
z
S
e
l
u
l
a
r
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-
y
e
s
T
h
i
s
p
a
p
e
r
C
i
r
c
u
l
a
r
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S
h
a
p
e
d
w
i
t
h
B
e
l
e
v
e
d
H
a
l
f
c
u
t
S
t
r
u
c
t
u
r
e
2
.
1
7
5
G
H
z
G
S
M
,
W
C
D
M
A
,
L
T
E,
a
n
d
W
L
A
N
y
e
s
y
e
s
y
e
s
T
h
is
r
est
o
f
th
i
s
p
ap
er
is
d
etailed
as
f
o
llo
w
s
.
I
n
Sectio
n
2
,
th
e
p
r
o
p
o
s
ed
c
ir
cu
lar
s
h
ap
ed
b
elev
ed
a
n
ten
n
a
an
d
MM
O
cir
cu
lar
s
h
ap
ed
b
elev
ed
an
ten
n
a
ar
e
p
r
esen
ted
.
T
h
e
d
etail
o
f
n
u
m
er
i
ca
l
s
i
m
u
latio
n
w
as
also
d
escr
ib
ed
in
Sectio
n
2
.
Fu
r
t
h
er
m
o
r
e,
th
e
m
ea
s
u
r
e
m
en
t
r
es
u
lts
o
f
t
h
e
f
ab
r
icate
d
an
ten
n
a
a
n
d
th
e
co
m
p
ar
is
o
n
w
it
h
s
i
m
u
latio
n
r
esu
lt
w
a
s
ex
p
lai
n
ed
in
Se
c
tio
n
3
.
Fin
all
y
,
Sectio
n
4
co
n
cl
u
d
es th
i
s
r
esear
ch
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N:
2
0
8
8
-
8708
I
n
t J
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lec
&
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p
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n
g
,
Vo
l.
9
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No
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2
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A
p
r
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0
1
9
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1
1
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1
1
2
1
1112
2.
RE
S
E
ARCH
M
E
T
H
O
D
I
n
th
i
s
s
ec
tio
n
,
t
h
e
p
r
o
p
o
s
ed
cir
cu
lar
s
h
ap
ed
b
elev
ed
an
te
n
n
a
a
n
d
MM
O
cir
c
u
lar
s
h
ap
e
d
b
elev
ed
an
ten
n
a
w
er
e
d
esi
g
n
ed
.
Fig
u
r
e
1
(
a)
,
F
ig
u
r
e
1
(
b
)
,
F
ig
u
r
e
1
(
c)
,
F
ig
u
r
e
1
(
d
)
,
an
d
F
i
g
u
r
e
1
(
e)
s
h
o
w
c
o
n
v
e
n
tio
n
a
l
c
ir
cu
lar
s
h
ap
e
a
n
te
n
n
a
(
C
S
S
A
)
[
Mo
d
el
-
1]
,
f
r
o
n
t
v
ie
w
o
f
C
C
S
A
,
c
ir
c
u
lar
s
h
ap
ed
b
elev
ed
a
n
te
n
n
a
(
C
SB
A
)
[
Mo
d
el
-
2
]
,
f
r
o
n
t
v
ie
w
o
f
C
B
S
A
,
MI
MO
c
ir
cu
lar
s
h
ap
ed
b
elev
ed
a
n
te
n
n
a
(
C
SB
A
)
[
Mo
d
el
-
3]
,
r
esp
ec
tiv
el
y
.
Fig
u
r
e
1
.
(
a)
C
o
n
v
en
tio
n
al
C
i
r
cu
la
r
Sh
ap
e
An
te
n
n
a
(
C
C
S
S
A)
[
Mo
d
el
-
1
]
,
(
b
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Fro
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tio
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lar
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atch
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R
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ate
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n
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as
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ed
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g
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r
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2
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s
h
o
w
s
t
h
e
ex
tr
ac
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r
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icien
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ar
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R
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h
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ata
s
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w
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m
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f
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g
t
h
e
r
ad
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s
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R
),
th
e
r
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f
lectio
n
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ef
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icie
n
t
ca
n
b
e
tu
n
ed
.
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w
e
v
er
,
f
o
r
R=
22
m
m
a
n
d
R=
2
4
m
m
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t
h
e
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n
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n
n
a
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n
o
t
r
e
s
o
n
a
n
ce
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Fu
r
t
h
er
m
o
r
e
,
Fig
u
r
e
2
(
b
)
s
h
o
w
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t
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s
ta
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(
R
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h
e
s
i
m
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es
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lt
s
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o
w
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t
h
at
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R
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e
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e
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ter
t
h
an
2
at
R
=2
8
m
m
an
d
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3
0
m
m
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
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p
E
n
g
,
Vo
l.
9
,
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2
,
A
p
r
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0
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1
1
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1114
Fig
u
r
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2
.
(
a)
T
h
e
ex
tr
ac
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lectio
n
co
ef
f
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t
w
it
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m
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b
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ta
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g
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R
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it
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d
R
(
m
m
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Fig
u
r
e
3
(
a)
an
d
Fi
g
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r
e
3
(
b
)
ill
u
s
tr
ate
th
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r
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tio
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co
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f
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n
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w
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th
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W
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SW
R
)
w
i
th
v
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ed
W
G
,
r
esp
ec
tiv
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y
.
Fro
m
t
h
e
d
ata
i
n
Fi
g
u
r
e
3
(
a)
,
w
e
ca
n
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ee
t
h
at
t
h
e
W
G
i
s
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e
n
tial
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ar
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s
to
m
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k
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a
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h
e
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g
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r
e
3
(
a)
s
h
o
w
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at
b
y
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n
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ea
s
in
g
t
h
e
W
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(
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m
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,
th
e
a
n
te
n
n
a
w
ill
b
e
m
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r
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r
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ate.
M
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Fi
g
u
r
e
3
(
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s
h
o
w
s
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ly
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n
d
t
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h
e
V
SW
R
o
f
th
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te
n
n
a
is
b
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t
h
a
n
2
(
t
w
o
)
f
o
r
W
G
i
s
lo
n
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er
t
h
a
n
2
8
m
m
.
Ho
w
ev
e
r
,
th
e
d
i
m
e
n
s
io
n
o
f
t
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is
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te
n
n
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e
. T
h
e
n
e
x
t
s
tep
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lain
s
th
e
m
i
n
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u
r
izati
o
n
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r
o
ce
s
s
.
Fig
u
r
e
3
.
(
a)
T
h
e
ex
tr
ac
ted
r
ef
lectio
n
co
ef
f
icie
n
t
w
it
h
v
ar
ied
W
G
(
m
m
)
; (
b
)
T
h
e
ex
tr
ac
ted
v
o
ltag
e
s
ta
n
d
in
g
w
a
v
e
r
atio
(
VSW
R
)
w
it
h
v
ar
ie
d
W
G
(
m
m
)
I
n
th
i
s
p
ap
er
,
th
e
b
an
d
w
id
th
en
h
a
n
ce
m
en
t
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d
m
i
n
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u
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n
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f
th
e
a
n
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n
a
is
o
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tain
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y
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e
b
elev
ed
m
eth
o
d
as
s
h
o
w
n
in
F
ig
u
r
e
1
(
b
)
an
d
Fig
u
r
e
1
(
c)
.
T
h
e
b
elev
ed
m
et
h
o
d
w
as
ap
p
lied
b
y
cu
t
o
n
e
s
id
e
o
f
th
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n
ten
n
a
,
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ar
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.
F
u
r
th
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e,
t
h
e
s
ize
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h
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n
ten
n
a
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l
b
e
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ce
d
b
y
d
(
m
m
)
.
Mo
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er
,
t
h
e
r
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l
t
o
f
n
u
m
er
ical
s
i
m
u
lat
io
n
b
ased
o
n
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e
b
elev
ed
m
et
h
o
d
is
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ep
icted
in
Fig
u
r
e
4
(
a)
an
d
Fig
u
r
e
4
(
b
)
.
Fig
u
r
e
4
(
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illu
s
tr
ates
t
he
ex
tr
ac
ted
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ef
lect
io
n
co
ef
f
icie
n
t
w
it
h
v
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ied
d
(
m
m
).
B
ase
o
n
F
ig
u
r
e
4
(
a)
,
t
h
e
d
ata
s
h
o
w
s
th
a
t
a
t
d=
1
0
m
m
p
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lar
g
e
b
an
d
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h
.
H
o
w
ev
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f
o
r
d
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0
m
m
at
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h
e
f
r
eq
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n
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f
2
.
8
GHz
,
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lectio
n
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ef
f
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n
t
is
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i
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n
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B
at
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r
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en
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8
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z
.
Th
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r
e
,
th
e
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al
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m
m
is
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t
c
h
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h
e
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f
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f
i
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t
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s
to
o
h
i
g
h
.
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h
er
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o
r
e,
th
e
d
ata
s
h
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w
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th
at
th
e
lar
g
est
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an
d
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th
is
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en
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ated
at
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m
m
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h
is
r
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lt
is
al
s
o
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n
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icate
d
in
Fi
g
u
r
e
4
(
b
)
w
h
ic
h
p
r
ese
n
ts
t
h
e
ex
tr
ac
ted
ce
n
ter
f
r
eq
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en
c
y
a
n
d
b
an
d
w
id
t
h
w
it
h
v
ar
ied
d
(
m
m
)
.
Fo
r
i
n
s
ta
n
c
e,
th
e
cir
cu
lar
s
h
ap
ed
b
elev
ed
an
ten
n
a
(
C
SB
A
)
[
Mo
d
el
-
2
]
is
r
ep
r
esen
ted
b
y
t
h
e
an
te
n
n
a
w
it
h
d
=
8
m
m
an
d
th
e
co
n
v
e
n
tio
n
al
cir
cu
lar
s
h
a
p
e
an
ten
n
a
(
C
C
S
A
)
[
Mo
d
el
-
1
]
is
r
ep
r
esen
ted
b
y
t
h
e
an
ten
n
a
w
it
h
d
=
0
m
m
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2
0
8
8
-
8708
B
a
n
d
w
id
th
en
h
a
n
ce
me
n
t a
n
d
min
ia
tu
r
iz
a
tio
n
o
f
circu
la
r
-
s
h
a
p
ed
micro
s
tr
ip
a
n
te
n
n
a
…
(
Teg
u
h
F
ir
ma
n
s
ya
h
)
1115
Fig
u
r
e
4
.
(
a)
T
h
e
ex
tr
ac
ted
r
ef
lectio
n
co
ef
f
icie
n
t
w
it
h
v
ar
ied
d
(
m
m
)
; (
b
)
T
h
e
ex
tr
ac
ted
f
r
e
q
u
en
c
y
ce
n
ter
a
n
d
b
an
d
w
id
t
h
w
it
h
v
ar
ied
d
(
m
m
)
T
h
e
n
ex
t
s
tep
is
to
ap
p
l
y
t
h
e
C
SB
A
[
Mo
d
el
-
2
]
to
MI
MO
-
C
SB
A
[
Mo
d
el
-
3
]
a
n
te
n
n
a
as
s
h
o
w
n
i
n
Fig
u
r
e
1
(
e)
.
F
u
r
th
er
m
o
r
e
,
Fi
g
u
r
e
5
(
a)
s
h
o
w
s
t
h
e
ex
tr
ac
ted
r
ef
lectio
n
co
ef
f
icie
n
t
w
it
h
d
i
f
f
er
en
t
W
S
MB
(
m
m
)
an
d
Fi
g
u
r
e
5
(
b
)
i
l
lu
s
tr
ate
s
t
h
e
ex
tr
ac
ted
v
o
lta
g
e
s
ta
n
d
in
g
w
a
v
e
r
atio
(
VSW
R
)
w
it
h
v
ar
ied
W
S
MB
(
m
m
)
.
Fig
u
r
e
5
(
a)
s
h
o
w
s
a
clea
r
i
llu
s
tr
at
io
n
th
at
t
he
r
e
f
lectio
n
co
e
f
f
icien
t
is
s
tab
le
f
o
r
th
e
d
if
f
er
en
t
le
n
g
t
h
o
f
W
S
MB
an
d
it
s
h
o
w
s
t
h
at
t
h
e
r
e
f
lectio
n
co
ef
f
icie
n
t
v
al
u
es
ar
e
lo
w
er
th
a
n
-
1
0
d
B
.
Ho
w
ev
er
,
t
h
e
r
e
f
lectio
n
co
ef
f
icie
n
t
f
o
r
W
S
MB
=
1
8
0
m
m
g
e
n
er
ate
s
lo
w
er
b
an
d
w
id
t
h
t
h
an
o
th
er
s
.
Fu
r
t
h
er
m
o
r
e
,
i
t
ap
p
ea
r
s
f
r
o
m
Fig
u
r
e
5
(
b
)
th
at
t
h
e
VSW
R
v
al
u
es
ar
e
s
ti
ll
lo
w
er
th
an
2
(
t
w
o
)
.
T
h
is
d
ata
s
h
o
w
s
th
at
t
h
e
a
n
ten
n
a
is
w
o
r
k
i
n
g
p
r
o
p
er
ly
w
it
h
g
o
o
d
p
er
f
o
r
m
a
n
ce
.
Fig
u
r
e
5
.
(
a)
T
h
e
ex
tr
ac
ted
r
ef
lectio
n
co
ef
f
icie
n
t
w
it
h
v
ar
ied
W
S
MB
(
m
m
)
; (
b
)
T
h
e
ex
tr
ac
ted
v
o
ltag
e
s
tan
d
i
n
g
w
a
v
e
r
atio
(
VSW
R
)
w
it
h
v
ar
ied
W
S
MB
(
m
m
)
T
h
e
n
u
m
er
ical
s
i
m
u
lat
io
n
r
es
u
lt
o
f
m
u
t
u
al
co
u
p
lin
g
MI
M
O
an
te
n
n
a
is
s
h
o
w
n
i
n
F
ig
u
r
e
6
(
a)
an
d
Fig
u
r
e
6
(
b
)
.
Fig
u
r
e
6
(
a)
ex
h
ib
its
t
h
e
ex
tr
ac
ted
m
u
t
u
al
co
u
p
lin
g
(
S
21
)
w
ith
v
ar
ied
W
S
MB
(
m
m
)
an
d
Fig
u
r
e
6
(
b
)
il
l
u
s
tr
ates
t
h
e
ex
t
r
ac
ted
m
u
t
u
al
co
u
p
li
n
g
(
S
31
)
w
it
h
v
ar
ied
W
S
MB
(
m
m
)
.
T
h
e
m
u
t
u
al
co
u
p
li
n
g
v
alu
e
o
f
S
21
(
d
B
)
an
d
S
31
(
d
B
)
d
e
m
o
n
s
tr
ate
th
e
co
u
p
li
n
g
b
et
w
ee
n
An
te
n
a
1
to
An
te
n
n
a
2
an
d
A
n
ten
a
1
to
An
te
n
n
a
3
,
r
esp
ec
tiv
el
y
.
T
h
e
co
u
p
lin
g
co
ef
f
icie
n
t
is
lo
w
er
th
an
-
1
5
d
B
alm
o
s
t
o
v
er
th
e
w
h
o
le
ba
nd
w
h
ic
h
sh
o
w
s
a
g
o
o
d
is
o
latio
n
p
er
f
o
r
m
an
ce
.
Ho
w
ev
er
,
th
e
co
u
p
li
n
g
co
ef
f
icie
n
t
f
o
r
W
S
MB
=
1
8
0
m
m
is
h
ig
h
er
th
a
n
-
1
5
d
B
at
th
e
f
r
eq
u
e
n
c
y
o
f
2
.
8
GHz
.
So
,
th
e
W
SMB
=
1
8
0
m
m
ca
n
n
o
t
b
e
ch
o
s
e
n
.
T
h
e
d
is
t
ac
e
b
et
w
ee
n
an
te
n
n
a
ef
f
ec
ts
o
n
m
u
t
u
al
co
u
p
lin
g
.
T
h
e
m
u
tu
a
l
co
u
p
li
n
g
ca
n
b
e
d
ec
r
ea
s
ed
b
y
i
n
cr
ea
s
i
n
g
t
h
e
d
i
s
tan
ce
b
et
w
ee
n
t
h
e
MI
MO
an
ten
n
a
s
.
Ho
w
e
v
er
,
th
e
s
ize
o
f
th
e
a
n
t
e
n
n
a
s
ca
n
n
o
t b
e
m
ad
e
to
o
lar
g
e.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
9
,
No
.
2
,
A
p
r
il 2
0
1
9
: 1
1
1
0
-
1
1
2
1
1116
Fig
u
r
e
6
.
(
a)
T
h
e
ex
tr
ac
ted
m
u
tu
al
co
u
p
li
n
g
(
S
21
)
w
i
th
v
ar
ied
W
S
MB
(
m
m
)
; (
c
)
T
h
e
ex
tr
ac
ted
m
u
t
u
al
co
u
p
li
n
g
(S
3
1
)
w
it
h
v
ar
ied
W
S
MB
(
m
m
)
3.
RE
SU
L
T
S
A
ND
AN
AL
Y
SI
S
T
o
v
er
if
y
t
h
e
s
i
m
u
latio
n
r
es
u
lt,
th
e
m
ea
s
u
r
e
m
en
t
o
f
th
e
an
ten
n
a
p
r
o
to
t
y
p
e
m
u
s
t
b
e
c
ar
r
ied
o
u
t
.
T
h
e
p
h
o
to
g
r
ap
h
o
f
t
h
e
f
ab
r
icate
d
p
r
o
p
o
s
ed
an
ten
n
a
is
d
ep
icted
in
Fi
g
u
r
e
7
(
a)
,
Fi
g
u
r
e
7
(
b
)
,
an
d
Fi
g
u
r
e
7
(
c)
.
Fig
u
r
e
7
(
a)
s
h
o
w
s
t
h
e
p
h
o
to
g
r
ap
h
o
f
co
n
v
e
n
tio
n
a
l
cir
cu
lar
s
h
ap
e
an
te
n
n
a
(
C
C
S
A
)
[
Mo
d
el
-
1
]
,
an
d
Fig
u
r
e
7
(
b
)
illu
s
tr
ates
th
e
p
h
o
to
g
r
ap
h
o
f
c
ir
cu
lar
s
h
ap
ed
b
elev
ed
a
n
ten
n
a
(
C
SB
A
)
[
Mo
d
el
-
2]
.
F
u
r
th
er
m
o
r
e,
Fig
u
r
e
7
(
c)
p
r
esen
ts
th
e
p
h
o
to
g
r
ap
h
MI
MO
cir
cu
lar
s
h
ap
ed
b
elev
ed
an
ten
n
a
(
MCS
B
A
)
[
Mo
d
el
-
3]
.
T
h
e
FR
4
s
u
b
s
tr
ate
w
it
h
r=
4
.
4
,
th
ick
n
e
s
s
h
=1
.
6
m
m
,
a
n
d
ta
n
d
=
0
.
0
2
6
5
w
a
s
u
s
ed
.
T
h
e
s
i
m
u
latio
n
a
n
d
o
p
t
i
m
izatio
n
h
a
s
b
ee
n
co
n
d
u
cted
u
s
i
n
g
A
d
v
an
ce
d
Desig
n
S
y
s
te
m
(
A
DS)
.
T
h
e
d
etailed
g
eo
m
e
tr
ic
p
ar
a
m
e
ter
s
ar
e
R
=2
8
m
m
,
L
S
=
6
3
m
m
,
W
S
=9
0
m
m
,
W
G
=
3
0
m
m
,
L
F
=
3
4
m
m
,
W
F
=
3
m
m
,
d
=
8
m
m
,
L
S
B
=
5
1
.
5
m
m
,
W
S
B
=
9
0
m
m
,
W
MS
B
=
1
9
0
m
m
,
a
n
d
W
A
=
9
8
.
5
m
m
,
Mo
r
eo
v
er
, t
h
e
f
u
ll si
ze
o
f
th
e
P
C
B
b
o
ar
d
is
1
90
×
19
0
mm
2
.
Fig
u
r
e
7
.
P
h
o
to
g
r
ap
h
o
f
(
a)
c
o
n
v
e
n
tio
n
al
c
i
r
cu
lar
s
h
ap
e
a
n
te
n
n
a
(
C
C
S
A
)
[
Mo
d
el
-
1
]
,
(
b
)
c
i
r
cu
lar
s
h
ap
ed
b
elev
ed
an
te
n
n
a
(
C
SB
A
)
[
Mo
d
el
-
2
]
,
(
c
)
MI
MO
c
ir
cu
lar
s
h
ap
ed
b
elev
ed
a
n
ten
n
a
(
M
C
SB
A)
[
Mo
d
el
-
3]
Fig
u
r
e
8
(
a)
s
h
o
w
s
t
h
e
co
m
p
ar
is
o
n
b
et
w
ee
n
s
i
m
u
la
ted
an
d
m
ea
s
u
r
ed
o
f
r
ef
lectio
n
co
ef
f
icien
t
o
f
C
C
S
A
an
te
n
n
a
d
an
C
SB
A
a
n
ten
n
a.
T
h
e
s
i
m
u
la
ted
/
m
ea
s
u
r
ed
o
f
C
C
S
A
a
n
ten
n
a
[
Mo
d
el
-
1
]
ac
h
ie
v
es
l
o
w
er
f
r
eq
u
en
c
y
=
1
.
0
9
3
GHz
/
1
.
0
9
4
GHz
,
u
p
p
er
f
r
eq
u
e
n
c
y
=
2
.
7
1
9
GHz/
2
.
5
6
8
GHz
,
c
en
ter
f
r
eq
u
en
c
y
=
1
.
9
0
6
GHz/
1
.
8
3
1
GHz
,
b
an
d
w
id
th
=
1
.
6
2
6
GHz/
1
.
4
7
4
GHz
,
an
d
r
e
f
lectio
n
co
ef
f
icie
n
t=
-
1
6
.
3
9
d
B
/
-
1
5
.
1
3
d
B
w
it
h
t
h
e
s
ize
o
f
C
C
S
A
a
n
ten
n
a
h
a
s
6
3
x
90
m
m
.
F
u
r
t
h
er
m
o
r
e
,
t
h
e
s
i
m
u
lated
/
m
ea
s
u
r
ed
o
f
C
B
S
A
an
ten
n
a
[
Mo
d
el
-
2
]
ac
h
iev
e
s
lo
w
er
f
r
eq
u
e
n
c
y
=
1
.
0
5
1
GHz/
1
.
0
9
0
GHz
,
u
p
p
er
f
r
eq
u
en
c
y
=
3
.
2
9
9
GHz/
3
.
4
2
2
GHz,
ce
n
ter
f
r
eq
u
e
n
c
y
=
2
.
1
7
5
GHz/
2
.
2
6
5
GHz
,
b
an
d
w
i
d
th
=
2
.
2
4
8
GHz/
2
.
3
3
2
GH
z
,
an
d
r
ef
lectio
n
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2
0
8
8
-
8708
B
a
n
d
w
id
th
en
h
a
n
ce
me
n
t a
n
d
min
ia
tu
r
iz
a
tio
n
o
f
circu
la
r
-
s
h
a
p
ed
micro
s
tr
ip
a
n
te
n
n
a
…
(
Teg
u
h
F
ir
ma
n
s
ya
h
)
1117
co
ef
f
icie
n
t=
-
1
7
.
9
9
d
B
/
1
7
.
3
7
d
B
w
it
h
th
e
si
ze
o
f
C
SB
A
a
n
ten
n
a
h
a
s
5
1
.
5
x
9
0
m
m
.
M
o
r
eo
v
er
,
Fig
u
r
e
8
(
b
)
s
h
o
w
s
t
h
e
co
m
p
ar
is
o
n
b
et
wee
n
s
i
m
u
lated
a
n
d
m
ea
s
u
r
ed
o
f
V
SW
R
.
T
h
e
s
i
m
u
lated
/
m
ea
s
u
r
ed
o
f
C
C
S
A
an
ten
n
a
[
Mo
d
el
-
1
]
ac
h
ie
v
es
VSW
R
=
1
.
3
5
/
1
.
4
2
,
an
d
t
h
e
s
i
m
u
lated
/
m
ea
s
u
r
ed
o
f
C
SB
A
an
ten
n
a
[
Mo
d
el
-
2
]
ac
h
iev
e
s
VSW
R
=
1
.
2
8
/
1
.
3
1
.
B
ase
o
n
th
e
m
ea
s
u
r
e
m
e
n
t
p
er
f
o
r
m
an
ce
,
b
o
th
a
n
ten
n
as
ca
n
w
o
r
k
as
e
x
p
ec
ted
.
Ho
w
e
v
er
,
t
he
co
m
p
ar
is
o
n
r
es
u
lt
s
h
o
w
ed
t
h
at
p
r
o
p
o
s
ed
an
ten
n
a
C
SB
A
[
Mo
d
el
2
]
h
as
w
id
er
-
b
an
d
w
id
th
o
f
5
8
,
2
% a
n
d
s
m
aller
-
s
ize
o
f
1
8
.
2
%.
Fig
u
r
e
8
.
(
a)
T
h
e
co
m
p
ar
is
o
n
b
et
w
ee
n
s
i
m
u
lated
an
d
m
ea
s
u
r
ed
o
f
r
ef
lectio
n
co
ef
f
icie
n
t;
(
b
)
T
h
e
co
m
p
ar
is
o
n
b
et
w
ee
n
s
i
m
u
lated
an
d
m
ea
s
u
r
ed
o
f
VS
W
R
Fig
u
r
e
9
(
a)
ex
h
ib
its
t
h
e
co
m
p
ar
is
o
n
of
g
a
i
n
(
d
B
i)
,
d
ir
ec
tiv
it
y
(
d
B
i)
,
e
f
f
ic
ien
c
y
(
%)
.
T
h
e
g
ai
n
o
f
C
C
S
A
[
Mo
d
el
1
]
/
C
SB
A
[
Mo
d
el
2
]
an
ten
n
a
h
a
s
1
.
5
8
d
B
i/1
.
5
6
d
B
i,
3
.
6
1
d
B
i/
2
.
2
9
d
B
i,
2
.
4
4
d
B
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.
2
7
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B
i,
an
d
2
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4
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B
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.
3
4
d
B
i
f
o
r
f
r
eq
u
en
c
y
o
f
0
.
9
5
GHz
,
1
.
8
5
GHz
,
2
.
3
5
GHz
,
an
d
2
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4
5
GHz
,
r
esp
ec
tiv
el
y
.
Fu
r
t
h
er
m
o
r
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t
h
e
d
ir
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ti
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it
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o
f
C
C
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A
[
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9
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B
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4
d
B
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4
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0
9
d
B
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8
4
d
B
i
f
o
r
f
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eq
u
en
c
y
o
f
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5
GHz
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8
5
GHz
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2
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3
5
GHz
,
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4
5
GHz
,
r
e
s
p
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h
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f
f
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n
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C
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A
[
Mo
d
el
1
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an
ten
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as
8
3
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9
9
%/
8
3
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5
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4
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2
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0
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5
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d
6
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5
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7
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9
%
f
o
r
f
r
eq
u
en
c
y
o
f
0
.
9
5
GHz
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1
.
8
5
GHz
,
2
.
3
5
GHz
,
an
d
2
.
4
5
GHz
,
r
esp
ec
tiv
el
y
.
Mo
r
eo
v
er
,
Fi
g
u
r
e
9
(
b
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s
h
o
w
s
t
h
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c
o
m
p
ar
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o
n
b
et
w
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i
m
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lated
a
n
d
m
ea
s
u
r
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o
f
m
u
tu
a
l
co
u
p
li
n
g
(
S
21
)
a
n
d
(
S
31
).
T
h
e
s
i
m
u
lated
/m
ea
s
u
r
ed
o
f
m
u
tu
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co
u
p
li
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o
f
MI
MO
-
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B
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A
[
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el
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3]
an
t
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a
a
r
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-
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6
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1
5
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B
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6
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1
8
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B
an
d
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7
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1
1
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B
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6
.
4
1
d
B
f
o
r
m
u
t
u
al
co
u
p
li
n
g
(S
21
)
an
d
m
u
t
u
al
co
u
p
lin
g
(
S
31
)
,
r
esp
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e
l
y
.
T
h
e
MI
M
O
an
te
n
n
a
o
b
ta
i
n
v
er
y
g
o
o
d
m
u
tu
a
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co
u
p
li
n
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(<
-
1
5
d
B
)
.
M
o
r
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er
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th
e
m
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s
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r
ed
r
esu
lt
s
ar
e
in
a
g
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o
d
ag
r
ee
m
en
t
w
it
h
th
e
s
i
m
u
lated
r
es
u
l
ts
.
Fig
u
r
e
9
.
(
a)
T
h
e
co
m
p
ar
is
o
n
g
a
in
(
d
B
i)
,
d
ir
ec
tiv
it
y
(
d
B
i)
,
E
f
f
icien
c
y
(
%),
(
b
)
T
h
e
co
m
p
ar
is
o
n
b
et
w
ee
n
s
i
m
u
lated
an
d
m
ea
s
u
r
ed
o
f
m
u
t
u
al
co
u
p
li
n
g
(
S
21
)
an
d
(
S
31
)
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
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n
g
,
Vo
l.
9
,
No
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2
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A
p
r
il 2
0
1
9
: 1
1
1
0
-
1
1
2
1
1118
T
ab
le
2
s
u
m
m
ar
izes
th
e
co
m
p
ar
is
o
n
o
f
s
i
m
u
la
ted
an
d
m
e
a
s
u
r
ed
d
ata
o
f
C
C
S
A
[
Mo
d
el
-
1]
an
te
n
n
a,
C
SB
A
[
Mo
d
el
-
2
]
an
ten
n
a,
an
d
MI
MO
C
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SA
[
Mo
d
el
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3]
an
ten
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a
,
i
n
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r
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Mo
r
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atter
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p
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an
ten
n
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ar
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n
Fi
g
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r
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1
0
(
a)
-
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h
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n
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n
clu
s
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n
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all
o
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t
h
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d
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ta
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ak
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it
p
ar
ticu
lar
l
y
v
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n
m
u
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d
ar
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ap
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s
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SM9
5
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1
8
0
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L
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2
3
0
0
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an
d
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N2
4
0
0
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ab
le
2
.
T
h
e
C
o
m
p
ar
is
o
n
o
f
S
i
m
u
lated
an
d
Me
a
s
u
r
ed
R
es
u
lt
o
f
C
C
S
A
[
Mo
d
el
-
1]
A
n
te
n
n
a,
C
SB
A
[
Mo
d
el
-
2]
A
n
te
n
n
a,
a
n
d
MI
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C
B
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[
Mo
d
el
-
3]
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n
a
P
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f
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r
mac
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C
S
A
[
M
o
d
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l
-
1]
C
S
B
A
[
M
o
d
e
l
-
2]
M
I
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C
B
S
A
[
M
o
d
e
l
-
3]
S
i
mu
l
a
t
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d
M
e
a
su
r
e
d
S
i
mu
l
a
t
e
d
M
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su
r
e
d
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i
mu
l
a
t
e
d
M
e
a
su
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d
L
o
w
e
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f
r
e
q
u
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n
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y
(
G
H
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1
.
0
9
3
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4
1
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0
5
1
1
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1
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0
9
5
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p
p
e
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f
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n
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G
H
z
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2
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1
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2
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5
6
8
3
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2
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3
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4
2
2
3
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2
7
5
3
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4
1
7
C
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f
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y
(
G
H
z
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1
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1
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3
1
2
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1
7
5
2
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2
6
5
2
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1
6
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2
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2
5
6
B
a
n
d
w
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d
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h
(
M
H
z
)
1
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6
2
6
1
.
4
7
4
2
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2
4
8
2
.
3
3
2
2
.
2
1
4
2
.
3
2
2
R
e
f
l
e
c
t
i
o
n
c
o
e
f
f
i
c
i
e
n
t
(
d
B
)
-
1
6
.
3
9
-
1
5
.
1
3
-
1
7
.
9
9
-
1
7
.
3
7
-
1
7
.
1
2
-
1
7
.
2
5
V
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W
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1
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3
5
1
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4
2
1
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2
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1
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3
1
1
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3
2
1
.
3
3
M
u
t
u
a
l
c
o
u
p
l
i
n
g
(
S
21
)
NA
NA
NA
NA
-
1
6
.
1
5
-
2
6
.
1
8
M
u
t
u
a
l
c
o
u
p
l
i
n
g
(
S
31
)
NA
NA
NA
NA
-
2
7
.
1
1
-
2
6
.
4
1
G
a
i
n
@
f
=
0
.
9
5
G
H
z
(
d
B
i
)
1
.
5
8
NA
1
.
5
6
NA
0
.
1
4
NA
G
a
i
n
@
f
=
1
.
8
5
G
H
z
(
d
B
i
)
3
.
6
1
NA
2
.
2
9
NA
3
.
9
0
NA
G
a
i
n
@
f
=
2
.
3
5
G
H
z
(
d
B
i
)
2
.
4
4
NA
2
.
2
7
NA
4
.
6
4
NA
G
a
i
n
@
f
=
2
.
4
5
G
H
z
(
d
B
i
)
2
.
4
7
NA
2
.
3
4
NA
4
.
8
4
NA
D
i
r
e
c
t
i
v
i
t
y
@
f
=
0
.
9
5
G
H
z
(
d
B
i
)
2
.
3
4
NA
2
.
3
2
NA
1
.
4
7
NA
D
i
r
e
c
t
i
v
i
t
y
@
f
=
1
.
8
5
G
H
z
(
d
B
i
)
2
.
3
6
NA
3
.
5
4
NA
4
.
5
0
NA
D
i
r
e
c
t
i
v
i
t
y
@
f
=
2
.
3
5
G
H
z
(
d
B
i
)
3
.
9
9
NA
3
.
7
4
NA
5
.
4
9
NA
D
i
r
e
c
t
i
v
i
t
y
@
f
=
2
.
4
5
G
H
z
(
d
B
i
)
4
.
0
9
NA
3
.
8
4
NA
5
.
1
6
NA
Ef
f
i
c
i
e
n
c
y
@
f
=
0
.
9
5
G
H
z
(
%)
8
3
.
9
9
NA
8
3
.
9
2
NA
7
3
.
7
4
NA
Ef
f
i
c
i
e
n
c
y
@
f
=
1
.
8
5
G
H
z
(
%)
7
5
.
1
2
NA
7
4
.
9
2
NA
8
7
.
2
5
NA
Ef
f
i
c
i
e
n
c
y
@
f
=
2
.
3
5
G
H
z
(
%)
7
0
.
1
0
NA
7
1
.
2
5
NA
8
2
.
2
3
NA
Ef
f
i
c
i
e
n
c
y
@
f
=
2
.
4
5
G
H
z
(
%)
6
8
.
9
5
NA
7
0
.
8
9
NA
9
2
.
8
2
NA
S
i
z
e
W
(
mm
)
63
63
5
1
.
5
5
1
.
5
1
9
0
1
9
0
L
(
mm
)
90
90
90
90
1
9
0
1
9
0
H
(
mm
)
1
.
6
1
.
6
1
.
6
1
.
6
1
.
6
1
.
6
(
a)
(
b
)
(
c)
(
d
)
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2
0
8
8
-
8708
B
a
n
d
w
id
th
en
h
a
n
ce
me
n
t a
n
d
min
ia
tu
r
iz
a
tio
n
o
f
circu
la
r
-
s
h
a
p
ed
micro
s
tr
ip
a
n
te
n
n
a
…
(
Teg
u
h
F
ir
ma
n
s
ya
h
)
1119
(
e)
(
f
)
(
g
)
(
h
)
Fig
u
r
e
1
0
.
Gain
an
d
d
ir
ec
tiv
it
y
o
f
C
C
S
A
at
f
r
eq
u
e
n
c
y
(
a)
f
=
0
.
9
5
GHz
,
(
b
)
f
=
1
.
8
5
GHz
,
(
c)
f
=
2
.
3
5
GHz
,
(
d
)
f
=
2
.
4
5
GHz
.
Gain
an
d
d
ir
ec
tiv
it
y
o
f
C
SB
A
at
f
r
eq
u
e
n
c
y
(
e
)
f
=
0
.
9
5
GHz
,
(
f
)
f
=
1
.
8
5
G
Hz
,
(
g
)
f
=
2
.
3
5
GHz
, (
h
)
f
=2
.
4
5
G
Hz
4.
CO
NCLU
SI
O
N
I
n
o
r
d
er
to
r
e
d
u
ce
th
e
an
ten
a
s
ize
an
d
en
h
a
n
ce
th
e
b
an
d
w
id
t
h
o
f
an
te
n
a,
th
i
s
p
ap
er
w
as
p
r
o
p
o
s
ed
th
e
b
elev
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h
al
f
-
c
u
t
m
icr
o
s
tr
ip
s
t
r
u
ctu
r
e
.
Mo
r
eo
v
er
,
t
h
is
r
esear
ch
w
a
s
i
n
v
esti
g
ated
co
n
v
e
n
ti
o
n
al
cir
cu
lar
s
h
ap
e
an
ten
n
a
(
C
C
S
A
)
,
cir
c
u
lar
s
h
ap
ed
b
elev
ed
an
te
n
n
a
(
C
SB
A
)
,
a
n
d
MI
MO
cir
cu
lar
s
h
ap
ed
b
elev
ed
an
ten
n
a
(
MI
MO
-
C
B
S
A
)
a
s
Mo
d
el
1
,
Mo
d
el
2
,
an
d
Mo
d
el
3
,
r
esp
ec
tiv
el
y
.
Th
is
a
n
te
n
n
a
w
as
f
ab
r
icate
d
o
n
F
R
4
s
u
b
s
tr
ate
w
it
h
er
=
4
.
4
,
th
ic
k
n
e
s
s
h
=
1
.
6
m
m
,
a
n
d
ta
n
d
=
0
.
0
2
6
5
.
T
h
e
num
e
r
ical
s
i
m
u
lat
io
n
h
as
b
ee
n
co
n
d
u
cted
u
s
i
n
g
A
d
v
a
n
ce
d
Desi
g
n
S
y
s
te
m
(
A
DS)
.
T
h
e
m
ea
s
u
r
ed
r
es
u
l
t
s
h
o
w
ed
t
h
at
p
r
o
p
o
s
ed
an
ten
n
a
C
SB
A
[
Mo
d
el
2
]
h
as
w
id
er
-
b
a
n
d
w
id
t
h
o
f
5
8
,
2
%
an
d
s
m
aller
-
s
ize
o
f
1
8
.
2
%
co
m
p
ar
ed
to
C
C
S
A
[
Mo
d
el
1
]
an
ten
n
a.
T
h
en
,
a
f
ter
C
SB
A
[
Mo
d
el
2
]
s
tr
u
ct
u
r
e
w
a
s
ap
p
lied
to
MI
MO
2
2
[
Mo
d
el
3
]
,
th
e
MI
MO
an
te
n
n
a
o
b
ta
in
v
er
y
g
o
o
d
m
u
tu
al
co
u
p
li
n
g
(
<
-
1
5
d
B
)
.
M
o
r
eo
v
er
,
th
e
m
ea
s
u
r
ed
r
es
u
lts
ar
e
g
o
o
d
ag
r
ee
m
e
n
t
w
it
h
t
h
e
s
i
m
u
lated
r
es
u
lt
s
.
I
n
co
n
clu
s
io
n
,
all
o
f
t
h
ese
ad
v
an
ta
g
e
s
m
a
k
e
it
p
ar
ticu
lar
l
y
v
alu
ab
le
i
n
m
u
lti
s
tan
d
ar
d
an
ten
n
a
ap
p
licatio
n
s
d
esig
n
s
u
ch
as G
SM9
5
0
,
W
C
DM
A
1
8
0
0
,
L
T
E
2
3
0
0
,
an
d
W
L
A
N2
4
0
0
.
ACK
NO
WL
E
D
G
E
M
E
NT
S
T
h
e
au
th
o
r
s
th
a
n
k
t
h
e
L
P
P
M
Un
i
v
er
s
i
tas
Su
l
tan
A
g
e
n
g
T
ir
tay
asa
(
UNT
I
R
T
A
)
an
d
Min
i
s
tr
y
o
f
R
esear
ch
,
T
ec
h
n
o
lo
g
y
a
n
d
Hig
h
er
E
d
u
ca
tio
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,
I
n
d
o
n
esia
n
Go
v
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n
m
e
n
t
,
KE
ME
N
R
I
S
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K
DI
K
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I
f
o
r
th
e
f
i
n
an
cia
l su
p
p
o
r
t.
RE
F
E
R
E
NC
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S
[1
]
L
.
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a
n
g
,
Z.
Wen
g
,
Y.
C.
Jia
o
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W
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Zh
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,
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A
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b
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Circ
u
larly
P
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strip
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Ha
sh
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Da
h
ri,
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b
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f
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Re
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tarra
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A
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sig
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T
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mm
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(
3
),
p
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.
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0
1
7
.
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