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m
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g
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r
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8
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h
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f
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atch
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,
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o
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r
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asic
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ter
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g
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r
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r
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ter
at
all
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r
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s
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atch
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r
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atch
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m
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ated
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u
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er
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ed
th
a
t
th
e
An
ten
n
a
1
is
h
as
a
d
u
al
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f
r
eq
u
en
c
y
o
f
o
p
er
atio
n
w
h
ile
th
e
r
e
m
a
in
i
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t
w
o
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ten
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as
h
av
e
o
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l
y
a
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n
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le
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r
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en
c
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o
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er
atio
n
.
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s
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h
e
co
ax
ial
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ee
d
w
ill
e
x
cite
t
h
e
m
o
d
e
s
o
f
t
h
e
p
atc
h
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ten
n
a,
b
u
t
o
n
l
y
o
n
e
o
r
f
e
w
ar
e
ex
cited
d
ep
en
d
in
g
o
n
t
h
e
s
tr
u
ct
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o
f
t
h
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atc
h
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d
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ed
p
o
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t
lo
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tio
n
,
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h
e
r
eso
n
at
in
g
f
r
eq
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en
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s
ar
e
o
b
s
er
v
ed
.
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h
er
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o
r
e
cir
cu
lar
p
atch
is
c
h
o
s
en
o
v
er
th
e
h
ep
tag
o
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al
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d
r
ec
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g
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lar
p
atch
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.
Fig
u
r
e
5
s
h
o
w
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th
e
VSW
R
o
f
An
te
n
n
a
1
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te
n
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a
2
an
d
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ten
n
a
3
.
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t
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o
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er
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at
An
ten
n
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1
i
s
h
av
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n
g
a
d
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al
-
f
r
eq
u
e
n
c
y
o
f
o
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er
atio
n
at
1
3
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0
6
GHz
an
d
1
5
GHz
w
h
ile
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h
e
r
e
m
ai
n
in
g
t
w
o
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ten
n
as
ar
e
r
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atin
g
at
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5
GHz.
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m
t
h
e
ab
o
v
e
g
r
ap
h
s
,
it
is
o
b
s
er
v
e
d
th
at
th
e
i
m
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ed
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ce
r
esp
o
n
s
e
is
g
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in
t
h
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e
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lar
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atch
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A
s
t
h
e
co
a
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ial
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r
o
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ee
d
w
ill e
x
cite
t
h
e
m
o
d
e
s
o
n
t
h
e
p
atch
,
ac
co
r
d
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g
to
th
e
g
eo
m
e
tr
y
o
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th
e
p
atch
t
h
e
r
eso
n
ati
n
g
f
r
eq
u
en
cies a
r
e
o
b
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er
v
ed
.
Fig
u
r
e
4
.
R
etu
r
n
lo
s
s
p
lo
t o
f
b
asic
m
icr
o
s
tr
ip
p
atch
an
ten
n
a
s
Fig
u
r
e
5
.
VSW
R
p
lo
t o
f
b
asic
m
icr
o
s
tr
ip
p
atch
an
ten
n
a
s
T
o
s
u
r
g
e
t
h
e
p
er
f
o
r
m
a
n
ce
o
f
th
e
a
n
te
n
n
a,
th
e
tech
n
iq
u
e
o
f
s
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tti
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g
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ap
p
lied
o
n
t
h
e
g
r
o
u
n
d
.
T
h
e
DGS
co
n
s
is
ts
o
f
a
s
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tted
s
q
u
ar
e
r
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g
at
t
h
e
ce
n
ter
o
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t
h
e
g
r
o
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n
d
an
d
f
o
u
r
s
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ar
e
s
lo
ts
w
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h
a
cir
cle
at
t
h
e
ce
n
ter
at
all
th
e
f
o
u
r
co
r
n
er
s
o
f
th
e
g
r
o
u
n
d
ar
e
u
s
ed
in
s
t
ea
d
o
f
n
o
r
m
al
g
r
o
u
n
d
p
lan
e
.
A
p
lan
ar
r
ad
iatin
g
s
tr
u
ct
u
r
e
w
ith
alter
atio
n
s
i
n
th
e
g
r
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n
d
w
a
s
m
ad
e
to
d
ev
elo
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th
e
p
er
f
o
r
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a
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ce
o
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th
e
an
te
n
n
a.
T
h
e
d
i
m
en
s
io
n
s
o
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t
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e
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r
o
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ed
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e
f
ec
ti
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e
g
r
o
u
n
d
s
tr
u
c
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r
e
(
DGS
)
ar
e
s
h
o
w
n
in
T
ab
le
1
.
T
h
e
s
ch
e
m
atics
v
ie
w
o
f
b
a
s
ic
p
atch
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te
n
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as 1
,
2
a
n
d
3
ar
e
m
o
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i
f
ied
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y
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ep
lacin
g
t
h
e
n
o
r
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al
g
r
o
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n
d
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lan
e
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h
DGS
ar
e
s
h
o
w
n
in
Fig
u
r
e
6
.
Fig
u
r
e
7
s
h
o
w
s
th
e
r
etu
r
n
lo
s
s
p
lo
t
o
f
t
h
e
DGS
An
ten
n
a
s
4
,
5
,
6
.
I
t
is
o
b
s
er
v
ed
th
at
th
e
An
te
n
n
a
4
is
h
a
v
in
g
a
d
u
al
-
f
r
eq
u
en
c
y
o
f
o
p
er
atio
n
at
1
2
.
7
GHz
an
d
1
5
.
0
GHz
.
Fig
u
r
e
8
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
Desig
n
o
f wi
d
e
b
a
n
d
s
lo
tted
micro
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ip
p
a
tch
a
n
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n
a
w
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efec
tive
g
r
o
u
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d
…
(
A
kh
ila
Jo
h
n
Da
vu
lu
r
i
)
1341
d
ep
icts
th
e
VSW
R
p
lo
t o
f
t
h
e
DGS
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te
n
n
a
s
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5
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t is o
b
s
er
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t
h
at
t
h
e
An
te
n
n
a
4
is
h
av
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g
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<2
f
o
r
th
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r
eq
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en
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ies
o
f
1
2
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d
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5
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0
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at
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h
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m
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ed
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n
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ce
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er
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iati
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e
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er
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n
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ar
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m
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s
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k
e
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r
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s
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SW
R
,
an
d
Gain
.
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ab
le
1
.
Dim
e
n
s
io
n
s
o
f
t
h
e
p
r
o
p
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s
ed
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P
a
r
a
me
t
e
r
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e
scri
p
t
i
o
n
V
a
l
u
e
s
(
mm
)
W
G
W
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d
t
h
o
f
t
h
e
G
r
o
u
n
d
40
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G
L
e
n
g
t
h
o
f
t
h
e
G
r
o
u
n
d
48
R
C
T
h
e
d
i
a
me
t
e
r
o
f
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o
t
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n
t
h
e
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o
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e
r
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f
t
h
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g
r
o
u
n
d
2
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1
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i
d
t
h
o
f
c
o
r
n
e
r
s
l
o
t
o
f
t
h
e
g
r
o
u
n
d
10
L
1
L
e
n
g
t
h
o
f
c
o
r
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e
r
sl
o
t
o
f
t
h
e
g
r
o
u
n
d
10
T
RS
T
h
e
t
h
i
c
k
n
e
ss o
f
t
h
e
d
i
a
mo
n
d
sl
o
t
o
n
t
h
e
g
r
o
u
n
d
2
.
8
3
L
RS
L
e
n
g
t
h
o
f
R
e
c
t
a
n
g
u
l
a
r
S
l
o
t
1
5
.
1
4
W
RS
W
i
d
t
h
o
f
R
e
c
t
a
n
g
u
l
a
r
S
l
o
t
1
5
.
1
4
(
a)
(
b
)
(
c)
Fig
u
r
e
6
.
B
asic
m
icr
o
s
tr
ip
p
atch
an
te
n
n
as
w
it
h
p
r
o
p
o
s
ed
D
GS,
(
a)
an
ten
n
a
4
,
(
b
)
an
ten
n
a
5
,
(
c)
an
ten
n
a
6
Fig
u
r
e
7
.
R
etu
r
n
lo
s
s
p
lo
t o
f
b
asic
m
icr
o
s
tr
ip
p
atch
an
ten
n
a
s
w
it
h
p
r
o
p
o
s
ed
DGS
Fig
u
r
e
8
.
VSW
R
p
lo
t o
f
b
asic m
icr
o
s
tr
ip
p
atch
an
ten
n
a
s
w
it
h
p
r
o
p
o
s
ed
DGS
3.
RE
SU
L
T
S
A
ND
AN
AL
Y
SI
S
T
h
e
d
esig
n
o
f
a
s
lo
tted
p
atch
Ku
b
a
n
d
p
atch
a
n
ten
n
a
w
i
th
DG
S
f
o
r
s
atell
ite
co
m
m
u
n
icatio
n
s
i
s
p
r
esen
ted
.
T
h
e
p
r
esen
ted
an
t
en
n
a
i
s
a
s
in
g
le
la
y
er
cir
cu
la
r
p
atch
co
n
f
ig
u
r
atio
n
w
h
er
e
a
th
in
la
y
er
o
f
FR
4
s
u
b
s
tr
ate
u
s
ed
f
o
r
etch
i
n
g
th
e
m
icr
o
s
tr
ip
p
atch
ele
m
e
n
t.
An
ten
n
a
7
co
n
tai
n
s
o
n
l
y
a
s
lo
tt
ed
s
q
u
ar
e
r
in
g
a
n
d
A
n
t
e
n
n
a
8
c
o
n
t
a
i
n
s
a
n
o
n
l
y
s
l
o
t
t
e
d
c
i
r
c
u
l
a
r
r
i
n
g
.
A
n
t
e
n
n
a
9
c
o
n
t
a
i
n
s
b
o
t
h
t
h
e
s
q
u
a
r
e
a
n
d
c
i
r
c
u
l
a
r
s
l
o
t
t
e
d
r
i
n
g
s
.
Fig
u
r
e
9
s
h
o
w
s
t
h
e
s
eq
u
e
n
ce
if
d
e
v
elo
p
m
e
n
ts
o
n
t
h
e
cir
cu
l
ar
p
atch
DG
S
a
n
te
n
n
a
w
it
h
s
l
o
tted
p
a
tch
s
u
r
f
ac
e.
Fig
u
r
e
10
s
h
o
w
s
t
h
e
r
etu
r
n
lo
s
s
p
lo
t
o
f
th
e
A
n
te
n
n
as
7
,
8,
9
w
it
h
DGS
an
d
s
lo
ts
.
I
t
is
o
b
s
er
v
ed
th
at
th
e
a
n
ten
n
a
7
i
s
h
as
a
v
er
y
lo
w
lev
el
o
f
i
m
p
ed
an
ce
m
atc
h
i
n
g
w
h
ile
t
h
e
a
n
ten
n
a
8
h
as
a
w
id
e
b
a
n
d
w
id
th
b
u
t
th
e
a
n
ten
n
a
9
h
as
a
m
u
ch
w
id
er
b
an
d
w
i
d
t
h
o
f
3
.
0
3
GHz
r
an
g
i
n
g
f
r
o
m
1
2
.
8
GHz
to
1
5
.
8
3
GHz
.
T
h
e
cu
r
r
en
t
p
ath
len
g
t
h
is
e
n
lar
g
ed
d
u
e
to
s
lo
ts
etc
h
ed
o
n
th
e
p
atch
s
u
r
f
a
ce
,
w
h
ich
lead
s
to
ad
d
itio
n
al
in
d
u
cta
n
ce
in
s
er
ies.
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.
11
,
No
.
2
,
A
p
r
il 2
0
2
1
:
1
3
3
7
-
1345
1342
T
h
e
w
id
e
b
an
d
w
id
t
h
i
s
g
e
n
er
a
ted
as
th
e
r
eso
n
a
n
t
cir
c
u
its
b
ec
o
m
e
co
u
p
led
.
Fi
g
u
r
e
1
1
d
ep
icts
t
h
e
VSW
R
p
lo
t
o
f
t
h
e
An
te
n
n
a
9
m
o
d
el
w
i
th
DGS
a
n
d
t
h
e
s
lo
tted
p
atc
h
.
T
h
e
p
r
o
p
o
s
ed
an
ten
n
a
i
s
h
a
v
in
g
w
id
e
b
an
d
w
id
th
o
f
3
.
0
3
GHz
r
an
g
i
n
g
f
r
o
m
1
2
.
8
GHz
to
1
5
.
8
3
GHz
.
T
h
e
d
im
en
s
io
n
s
o
f
t
h
e
p
r
o
p
o
s
ed
s
lo
ts
o
n
t
h
e
p
atc
h
ar
e
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w
it
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Ku
b
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VSW
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3
.
6
d
B
.
RE
F
E
R
E
NC
E
S
[1
]
Ag
g
a
r
wa
ll
,
N.
P
.
,
G
.
Ku
m
a
r,
a
n
d
K.
P
.
Ra
y
,
"
W
id
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b
a
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d
p
lan
a
r
m
o
n
o
p
o
le
a
n
ten
n
a
,
"
in
IEE
E
T
ra
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sa
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ti
o
n
s
o
n
An
ten
n
a
s
a
n
d
Pro
p
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g
a
t
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n
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v
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l
.
4
6
,
n
o
.
2
,
p
p
.
2
9
4
-
2
9
5
,
1
9
9
8
.
[2
]
Ka
n
d
w
a
l,
A
b
h
ish
e
k
,
"
Co
m
p
a
c
t
Du
a
l
Ba
n
d
A
n
ten
n
a
De
s
i
g
n
f
o
r
Ku
/Ka
Ba
n
d
A
p
p
li
c
a
ti
o
n
s,
"
Ad
v
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c
e
d
El
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ma
g
n
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ti
c
s
,
v
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6
,
n
o
.
4
,
p
p
.
1
-
5
,
2
0
1
7
.
[3
]
Ku
m
a
r
,
G
iri
sh
,
a
n
d
Ka
m
a
la P
ra
sa
n
Ra
y
,
“
Bro
a
d
b
a
n
d
m
icro
strip
a
n
t
e
n
n
a
s,”
Artec
h
h
o
u
se
,
2
0
0
3
.
[4
]
Isla
m
,
M
o
h
a
m
m
a
d
T
a
riq
u
l,
M
o
h
a
m
m
e
d
Na
z
m
u
s S
h
a
k
ib
,
a
n
d
No
rb
a
h
iah
M
isra
n
,
"
Bro
a
d
b
a
n
d
EH
s
h
a
p
e
d
m
icro
strip
p
a
t
c
h
a
n
ten
n
a
f
o
r
w
irele
ss
s
y
ste
m
s,
"
Pro
g
re
ss
In
El
e
c
tro
ma
g
n
e
ti
c
s
Res
e
a
rc
h
,
v
o
l.
98
,
p
p
.
1
6
3
-
1
7
3
,
2
0
0
9
.
[5
]
Ra
m
a
d
a
n
,
A
li
Ha
li
m
,
e
t
a
l.
,
"
A
r
e
c
o
n
f
ig
u
ra
b
le
U
-
Ko
c
h
m
i
c
ro
strip
a
n
ten
n
a
f
o
r
w
irele
s
s
a
p
p
li
c
a
ti
o
n
s,
"
Pro
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[6
]
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[7
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7
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4
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5
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