T
E
L
KO
M
N
I
KA
T
e
lec
om
m
u
n
icat
ion
,
Com
p
u
t
i
n
g,
E
lec
t
r
on
ics
an
d
Cont
r
ol
Vol.
18
,
No.
1
,
F
e
br
ua
r
y
2020
,
pp.
545
~
551
I
S
S
N:
1693
-
6930,
a
c
c
r
e
dit
e
d
F
ir
s
t
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a
de
by
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me
nr
is
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,
De
c
r
e
e
No:
21/E
/KP
T
/2018
DO
I
:
10.
12928/
T
E
L
KO
M
NI
KA
.
v18i1.
13532
545
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C
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Gla
s
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poxy
F
R
-
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s
ub
s
tr
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I
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ba
ndwidth
M
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tr
ip
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M
odif
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s
ha
pe
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Th
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d
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CC
B
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-
SA
l
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ce
n
s
e
.
C
or
r
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s
pon
din
g
A
u
th
or
:
Ame
e
r
L
.
S
a
leh
,
De
pa
r
tm
e
nt
of
E
lec
tr
ica
l
E
nginee
r
ing
,
Unive
r
s
it
y
of
M
is
a
n
,
M
is
a
n,
62001,
I
r
a
q
.
E
mail:
a
mee
r
-
late
e
f
@uomi
s
a
n.
e
du.
iq
1.
I
NT
RODU
C
T
I
ON
I
nc
r
e
a
s
ing
de
mand
f
or
c
ompac
t
tr
a
ns
c
e
iver
a
ppli
c
a
ti
ons
c
onti
nue
s
to
im
pa
c
t
the
f
ield
of
mi
c
r
owa
ve
a
nd
r
a
dio
f
r
e
que
nc
y
c
omm
unica
ti
ons
[
1
-
4]
.
S
o
me
of
the
mos
t
im
por
tant
modul
e
s
in
s
uc
h
s
ys
tems
a
r
e
the
mi
c
r
os
tr
ip
a
ntenna
s
a
nd
f
il
ter
s
[
5
-
17]
.
M
icr
os
tr
ip
pa
tch
a
ntenna
(
M
P
A)
ha
s
be
e
n
de
s
igned
a
r
e
wide
ly
c
ha
r
a
c
ter
ize
d
a
f
e
w
ye
a
r
s
a
go,
f
o
r
s
e
ve
r
a
l
r
e
a
s
ons
,
t
he
mos
t
im
por
tant
wa
s
that
it
ha
d
a
low
pr
o
f
il
e
,
li
gh
twe
ight
,
a
nd
low
f
a
br
ica
ti
on
c
os
t
[
18]
.
Dif
f
e
r
e
nt
tec
hniques
ha
ve
be
e
n
de
ve
loped
in
or
de
r
to
a
c
hieve
r
a
pid
s
ol
uti
ons
to
e
nha
nc
e
r
a
diation
s
pe
c
if
ica
ti
ons
s
uc
ha
s
ba
nd
width
a
nd
ga
in.
T
he
r
a
diating
pa
tch
c
a
n
take
a
ny
pos
s
ibl
e
g
e
ometr
y
f
or
e
xa
mpl
e
r
e
c
tangle
,
c
ir
c
le,
s
qua
r
e
,
dipol
e
,
a
nd
tr
iangula
r
[
19]
.
T
he
mi
c
r
os
tr
ip
monopol
e
pa
tch
a
ntenna
is
de
s
i
gne
d
a
s
a
s
ingl
e
-
laye
r
whic
h
us
ua
ll
y
c
ons
i
s
ts
of
f
our
pa
r
ts
:
pa
tch,
diele
c
tr
ic
s
ubs
tr
a
te,
ha
l
f
gr
ou
nd
plane
,
a
nd
f
e
e
dli
ne
[
20]
.
Ge
ne
r
a
ll
y,
the
phys
ica
l
dim
e
ns
ions
of
a
mi
c
r
os
tr
ip
monopol
e
pa
tch
a
ntenna
a
r
e
s
mall,
but
the
e
lec
tr
ica
l
dim
e
ns
ions
mea
s
ur
e
d
in
wa
ve
length
λ
is
not
s
mall
[
21]
.
T
he
de
s
igner
s
of
the
mi
c
r
os
tr
ip
a
ntenna
s
s
hould
a
ls
o
c
ons
ider
the
e
lec
tr
ica
l
c
ha
r
a
c
ter
is
ti
c
s
of
thes
e
a
ntenna
s
s
uc
h
a
s
c
e
nter
f
r
e
que
nc
y
,
v
olt
a
ge
s
tanding
wa
ve
r
a
t
io
(
VSWR
)
,
r
e
tur
n
los
s
,
ga
in,
a
nd
r
a
diation
pa
tt
e
r
n
[
22
]
.
R
a
pid
da
ta
t
r
a
ns
f
e
r
r
e
quir
e
s
high
Evaluation Warning : The document was created with Spire.PDF for Python.
I
S
S
N
:
1693
-
6930
T
E
L
KO
M
NI
KA
T
e
lec
omm
un
C
omput
E
l
C
ontr
o
l
,
Vol.
18
,
No
.
1
,
F
e
br
ua
r
y
2020
:
545
-
551
546
c
ha
nne
l
c
a
pa
c
it
ies
a
nd
ne
e
d
s
mor
e
c
ompl
e
x
a
nd
bulky
s
ys
tems
.
M
ode
r
n
tr
e
nds
in
e
lec
tr
o
nic
a
nd
c
omm
unica
ti
on
s
ys
tems
pr
opos
e
d
mor
e
c
ompac
t
a
nd
por
table
s
ys
tems
,
ther
e
f
or
e
the
de
s
igner
s
of
s
uc
h
s
ys
tems
f
a
c
ing
a
major
c
ha
ll
e
nge
in
r
e
a
li
z
ing
thes
e
c
ompl
e
x
s
ys
tems
a
nd
in
the
s
a
me
ti
me
a
r
e
c
ompac
t
a
nd
por
table
e
nough
to
mee
t
the
c
omm
e
r
c
ial
mar
ke
t
n
e
e
ds
[
23]
.
One
wa
y
to
mi
nim
ize
the
ove
r
a
ll
c
ir
c
uit
s
ize
a
nd
incr
e
a
s
ing
the
ba
ndwidth
is
to
int
e
gr
a
te
the
S
teppe
d
I
mpeda
nc
e
R
e
s
ona
tor
(
S
I
R
)
f
il
te
r
with
the
monopo
le
pa
tch
a
ntenna
in
one
s
ingl
e
modul
e
[
24]
.
T
his
int
e
gr
a
ti
onc
ha
nge
s
the
s
tr
uc
tur
e
o
f
the
c
ir
c
ui
t
;
i
mpr
ove
s
the
pe
r
f
or
manc
e
o
f
the
c
i
r
c
uit
,
a
nd
s
im
pli
f
ies
the
c
onne
c
ti
on
a
mong
va
r
ious
c
omponents
.
T
his
pa
pe
r
pr
e
s
e
nts
a
c
ompac
t
s
e
c
ond
-
or
de
r
f
il
ter
ing
a
ntenna
uti
li
z
in
g
S
I
R
a
nd
modi
f
ied
s
ha
pe
d
s
lot
s
on
the
monopo
le
pa
tch
a
ntenna
.
B
y
us
ing
S
I
R
ba
ndpa
s
s
f
il
ter
a
nd
a
dopti
n
g
the
modi
f
ied
s
ha
pe
d
s
lot
s
on
the
monopol
e
pa
tch
a
ntenna
the
pe
r
f
or
manc
e
o
f
the
c
ir
c
uit
ha
s
be
e
n
i
mpr
ove
d
e
s
pe
c
ially
ba
ndwidth.
2.
DE
S
I
GN
OF
T
HE
F
I
L
T
E
RI
NG
AN
T
E
NN
A
T
he
3
-
D
view
of
the
pr
opos
e
d
mi
c
r
os
tr
ip
f
i
l
ter
ing
a
ntenna
de
s
ign
c
ir
c
uit
is
de
s
c
r
ibed
in
F
igur
e
s
1
a
nd
2
.
T
he
de
s
ign
s
tr
uc
tur
e
is
p
r
int
e
d
o
n
one
s
ide
o
f
a
glas
s
e
poxy
F
R
-
4
s
ubs
tr
a
te
with
d
iele
c
tr
ic
c
ons
tant
=
4.
4
a
nd
thi
c
kne
s
s
ℎ
=
1.
6
.
T
he
mi
c
r
os
tr
ip
f
il
ter
ing
a
ntenna
c
ons
is
ts
of
thr
e
e
pa
r
ts
;
the
monopol
e
r
a
diating
pa
tch
a
ntenna
,
the
S
I
R
f
i
lt
e
r
,
a
nd
the
f
e
e
ding
m
icr
os
tr
ip
li
ne
.
T
he
monop
ole
p
a
tch
a
ntenna
ha
s
dim
e
ns
ions
of
×
,
with
a
bout
0.
863
a
t
the
ope
r
a
ti
ng
f
r
e
que
nc
y.
F
igur
e
3
s
hows
the
mi
c
r
owa
ve
e
quivale
nt
c
ir
c
uit
model
of
the
pr
op
os
e
d
f
il
ter
ing
a
ntenna
.
S
I
R
a
nd
the
monopol
e
pa
tch
a
ntenna
a
r
e
modelled
by
pa
r
a
ll
e
l
1
1
[
25]
a
nd
2
2
[
26]
lum
pe
d
c
ir
c
uit
s
r
e
s
pe
c
ti
ve
ly.
F
il
ter
s
ynthes
is
a
ppr
oa
c
h
theor
y
[
27]
c
ons
ider
e
d
thatthe
S
I
R
a
s
a
1
st
s
tage
r
e
s
ona
tor
a
nd
the
monopol
e
pa
tch
a
ntenna
c
ons
ider
e
d
as
the
2
nd
s
tage
r
e
s
ona
tor
with
the
load.
F
igur
e
1.
3
-
D
view
s
tr
uc
tur
e
of
the
pr
opos
e
d
f
il
ter
i
ng
a
ntenna
P
r
e
c
is
e
ly
the
e
quivale
nt
c
i
r
c
uit
of
the
pr
opos
e
d
f
il
ter
ing
a
ntenna
is
the
s
a
me
of
the
ba
nd
pa
s
s
f
il
ter
pr
otot
ype
,
by
uti
li
z
ing
f
il
ter
s
ynthes
is
method
,
the
f
il
ter
ing
a
ntenna
c
a
n
be
de
s
igned
wi
th
the
f
il
ter
r
e
s
pons
e
.
T
he
de
s
ign
pr
oc
e
dur
e
s
o
f
the
p
r
opos
e
d
f
i
lt
e
r
ing
a
nt
e
nna
s
tar
t
f
r
om
the
s
e
c
ond
-
or
de
r
C
he
bys
he
v
low
p
a
s
s
f
il
ter
pr
otot
ype
.
T
he
de
s
ign
pa
r
a
mete
r
s
,
s
uc
h
a
s
th
e
c
e
nter
f
r
e
que
nc
y,
the
f
r
a
c
ti
ona
l
ba
ndwidth
(
F
B
W
)
,
r
e
tur
n
los
s
,
a
nd
ins
e
r
ti
on
los
s
a
r
e
c
a
lcula
ted
.
T
he
lum
pe
d
e
leme
nts
va
lues
of
the
mi
c
r
owa
ve
c
ir
c
ui
t
model
s
hown
in
F
igur
e
3
a
r
e
a
va
il
a
ble
in
the
li
ter
a
tu
r
e
[
2
3]
.
T
he
f
ol
lowing
s
tep
is
to
de
s
ign
the
r
e
s
ona
tor
vi
a
the
S
I
R
s
tr
uc
tur
e
a
nd
monopol
e
pa
tch
a
ntenna
with
a
modi
f
ied
s
lot
-
s
ha
pe
d,
r
e
s
pe
c
ti
ve
ly.
F
inally,
s
e
t
them
a
ll
t
oge
ther
a
nd
im
pleme
nt
s
ome
f
ine
-
tuni
ng.
T
he
s
im
ulation
r
e
s
ult
s
thr
oughout
thi
s
r
e
s
e
a
r
c
h
pa
pe
r
a
r
e
a
c
c
ompl
i
s
he
d
by
c
omput
e
r
s
im
ulation
tec
hnology
(
C
S
T
)
s
of
twa
r
e
[
28]
.
T
he
de
s
ign
s
tr
uc
tur
e
with
it
s
opti
mi
z
e
d
dim
e
ns
ions
of
the
pr
opos
e
d
f
il
ter
ing
a
ntenna
is
pr
e
s
e
nted
in
F
ig
u
r
e
2.
T
he
pr
opos
e
d
f
i
lt
e
r
ing
a
ntenna
s
hown
in
F
ig
ur
e
2
c
a
n
be
e
xpr
e
s
s
e
d
by
it
s
e
quivale
nt
c
ir
c
uit
s
hown
in
F
i
g
ur
e
3
(
a
)
.
T
he
e
quivale
nt
c
ir
c
uit
of
the
p
r
opos
e
d
f
il
ter
ing
a
ntenna
s
hown
in
F
ig
ur
e
3
(
a
)
c
a
n
be
tr
a
ns
f
e
r
r
e
d
t
o
the
c
onve
nti
ona
l
s
e
c
ond
-
or
de
r
ba
nd
pa
s
s
f
il
ter
e
quivale
nt
c
ir
c
uit
s
hown
in
F
ig
ur
e
3
(
b)
[
29
]
.
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KO
M
NI
KA
T
e
lec
omm
un
C
omput
E
l
C
ontr
o
l
De
s
ign
and
opti
miz
ati
on
of
mic
r
os
tr
ip
fi
lt
e
r
ing
ant
e
nna
w
it
h
modifi
e
d
s
hape
d
s
lot
s
…
(
Hana
A
bde
l
-
J
a
bbar
)
547
(
a
)
(
b)
F
igur
e
2.
Ge
ometr
y
of
the
pr
opos
e
d
f
i
lt
e
r
ing
a
nten
na
with
it
s
opti
m
ize
d
dim
e
ns
ions
:
(
a
)
t
op
view
,
(
b)
b
ott
om
v
iew
(
a
)
(
b)
F
igur
e
3.
M
icr
owa
ve
e
quivale
nt
c
ir
c
uit
:
(
a
)
t
he
p
r
opos
e
d
f
il
ter
ing
a
ntenna
,
(
b)
t
he
s
e
c
ond
-
or
de
r
ba
nd
pa
s
s
f
il
te
r
T
he
r
e
s
is
tanc
e
in
the
e
quivale
nt
c
ir
c
uit
o
f
the
mon
opole
pa
tch
a
ntenna
is
c
ons
ider
e
d
a
s
the
load
im
pe
da
nc
e
of
the
ba
nd
pa
s
s
f
il
ter
to
be
s
ynthes
ize
d,
a
nd
the
pa
r
a
ll
e
l
-
is
the
las
t
c
ir
c
uit
r
e
s
ona
tor
of
the
f
il
ter
,
then:
=
√
(
1)
the
s
e
c
ond
-
or
de
r
ba
nd
pa
s
s
f
il
ter
is
c
hos
e
n
to
be
a
C
he
bys
he
v
e
qua
l
-
r
ippl
e
r
e
s
pons
e
,
with
t
he
r
ippl
e
leve
l
(
)
=
0.
5,
=
6.
45
GH
z
,
a
nd
por
t
c
ha
r
a
c
ter
is
ti
c
im
pe
da
nc
e
=
50
Ω
.
T
he
mi
nim
u
m
r
e
tur
n
los
s
(
)
in
pa
s
s
ba
nd
f
or
a
n
idea
l
C
he
bys
he
v
ba
ndpa
s
s
f
il
ter
is
given
a
s
[
30]
:
(
)
=
−
10
(
1
−
10
−
(
)
10
⁄
)
(
2)
in
thi
s
de
s
ign
e
xa
mpl
e
,
=
-
18.
2
dB
,
a
nd
the
F
B
W
=
25.
7
%
Evaluation Warning : The document was created with Spire.PDF for Python.
I
S
S
N
:
1693
-
6930
T
E
L
KO
M
NI
KA
T
e
lec
omm
un
C
omput
E
l
C
ontr
o
l
,
Vol.
18
,
No
.
1
,
F
e
br
ua
r
y
2020
:
545
-
551
548
T
he
qua
li
ty
f
a
c
tor
is
one
o
f
the
mos
t
im
po
r
tant
pa
r
a
mete
r
s
of
the
r
e
s
ona
nt
c
i
r
c
uit
,
a
nd
incr
e
a
s
ing
it
s
va
lue
mea
ns
that
lowe
r
los
s
in
the
r
e
s
on
a
nt
c
ir
c
uit
.
T
he
qua
li
ty
f
a
c
to
r
of
the
monopol
e
pa
tc
h
a
ntenn
a
c
a
n
be
de
r
ived
f
r
om
the
e
quivale
nt
c
ir
c
uit
o
f
the
pr
opos
e
d
f
il
ter
ing
a
ntenna
s
hown
in
F
igur
e
3
(
a
)
,
a
nd
us
e
d
f
or
s
ynthes
izing
the
f
il
ter
ing
a
ntenna
[
31]
.
=
2
(
3)
T
he
va
lues
of
L
C
c
omponents
of
the
r
e
s
ona
tor
s
a
r
e
given
by:
=
2
=
4.
93
nH,
=
1
2
=
4.
87
pF
(
4)
As
mentioned
e
a
r
li
e
r
the
s
e
c
ond
-
or
de
r
(
N
=
2)
C
he
bys
he
v
low
pa
s
s
f
il
ter
pr
otot
ype
with
pa
s
s
ba
nd
r
ippl
e
of
0.
5
dB
,
the
e
leme
nt
va
lues
a
r
e
=
1,
1
=
1
.
4029,
2
=
0.
7071
,
3
=
1.
9841
.
Ge
ne
r
a
ll
y,
f
o
r
the
e
quivale
nt
c
ir
c
uit
of
the
ba
ndpa
s
s
f
il
ter
s
hown
in
F
igur
e
3
(
b)
the
theor
e
ti
c
a
l
va
lues
of
the
J
-
inver
ter
s
c
a
n
be
r
e
a
dil
y
obtaine
d
[
32]
a
s
f
oll
ows
:
01
=
1
√
4
1
(
5)
−
1
,
=
1
4
√
−
1
(6
)
the
s
e
c
ond
-
or
de
r
C
he
bys
he
v
ba
ndpa
s
s
f
il
ter
pa
r
a
m
e
ter
va
lues
a
r
e
s
tate
d
in
T
a
ble
1.
T
a
ble
1.
T
he
P
a
r
a
mete
r
o
f
the
s
e
c
ond
-
or
de
r
C
he
bys
he
v
ba
ndpa
s
s
f
il
ter
P
a
r
a
me
te
r
V
a
lu
e
0.257
1
1
1.4029
2
0.7071
3
1.9841
01
7.48
×
10
−
3
12
4.688
×
10
−
3
23
3.942
×
10
−
3
3.
S
I
M
UL
AT
I
ON
RE
S
UL
T
S
AN
D
DI
S
CU
S
S
I
ON
T
he
s
im
ulate
d
S
11
-
pa
r
a
mete
r
a
nd
ga
in
of
the
p
r
opos
e
d
f
il
ter
ing
a
ntenna
a
r
e
s
hown
in
F
igu
r
e
4
.
B
a
s
e
d
on
thes
e
r
e
s
ult
s
,
it
is
f
ound
that
with
the
c
e
nter
f
r
e
que
nc
y
=
6.
45
GH
z
,
the
f
il
te
r
ing
a
ntenna
ha
s
two
tr
a
ns
mi
s
s
ion
z
e
r
os
a
t
5.
4
GH
z
a
nd
7.
7
GH
z
,
a
nd
ba
ndwidth
(
B
.
W
)
o
f
a
bout
1
.
66
GH
z
.
B
r
oa
dba
nd
is
one
of
the
mos
t
im
por
tant
r
e
qui
r
e
ments
f
o
r
moder
n
digi
ta
l
c
omm
unica
ti
on
whic
h
r
e
quir
e
d
tr
a
ns
mi
tt
ing
a
nd
r
e
c
e
ivi
ng
a
huge
bit
r
a
te.
T
he
r
e
f
o
r
e
,
th
is
de
s
ign
is
s
uit
a
ble
f
o
r
high
s
pe
e
d
da
ta
c
omm
unica
ti
on
.
De
f
e
c
ted
gr
ound
s
tr
uc
tu
re
(
DGS
)
wa
s
c
omm
on
u
s
e
in
the
m
icr
os
tr
ip
f
il
ter
s
a
nd
a
ntenna
s
to
r
e
a
li
z
e
the
S
-
pa
r
a
mete
r
s
pe
r
f
or
manc
e
s
a
nd
s
mall
s
ize
[
33]
.
R
e
a
li
z
a
ti
on
of
the
DG
S
is
pe
r
f
or
med
by
i
ns
e
r
ti
ng
a
de
f
e
c
ted
s
ha
pe
on
the
g
r
ound
plane
in
or
de
r
to
dis
tur
b
the
s
hield
c
ur
r
e
nt
dis
tr
ibut
ion
.
E
s
tablis
h
upon
on
the
s
ha
pe
a
nd
dim
e
ns
ions
of
the
DG
S
,
the
dis
tur
b
a
nc
e
at
the
gr
ound
s
hield
c
ur
r
e
nt
dis
tr
ibut
ion
will
c
ontr
ol
the
c
ur
r
e
nt
f
low
a
nd
the
inpu
t
im
pe
da
nc
e
of
the
pr
opos
e
d
f
il
ter
ing
a
ntenna
[
34
]
.
T
he
e
xc
it
a
ti
on
of
the
e
lec
tr
omagne
ti
c
wa
ve
s
pr
opa
ga
ti
ng
ins
ide
the
diele
c
tr
ic
s
ubs
tr
a
tela
ye
r
c
a
n
a
ls
o
be
c
ontr
oll
e
d
byt
he
DG
S
.
T
he
S
11
-
pa
r
a
mete
r
of
the
p
r
opos
e
d
f
il
te
r
ing
a
ntenna
with
a
nd
without
DG
S
is
s
hown
in
F
igur
e
5.
R
e
c
e
ntl
y
,
the
DG
S
is
us
e
d
to
e
nha
nc
e
the
s
top
ba
nd
r
e
jec
ti
on
c
ha
r
a
c
ter
is
ti
c
s
a
s
s
hown
in
F
ig
ur
e
5.
F
igur
e
6
s
hows
the
S
11
-
pa
r
a
mete
r
of
the
p
r
opo
s
e
d
f
il
ter
ing
a
ntenna
f
or
dif
f
e
r
e
nt
s
ha
pe
d
s
lot
s
loade
d.
T
he
r
a
diation
c
ha
r
a
c
ter
is
ti
c
s
of
the
f
il
ter
ing
a
n
tenna
a
r
e
ro
ughly
invar
iant,
with
good
pe
r
f
or
manc
e
of
S
11
-
pa
r
a
mete
r
a
nd
br
oa
d
s
ide
a
ntenna
ga
in
on
+
z
-
dir
e
c
ti
on
.
T
he
pe
a
k
ga
in
of
the
s
im
ulate
d
pa
tt
e
r
n
is
a
bout
2.
02
dB
a
nd
pr
ovides
good
s
kir
t
s
e
lec
ti
vit
y
.
T
he
s
im
ulate
d
3
-
D
view
r
a
diation
pa
tt
e
r
n
of
the
pr
opos
e
d
f
il
ter
ing
a
ntenna
is
s
hown
in
F
igur
e
7.
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KO
M
NI
KA
T
e
lec
omm
un
C
omput
E
l
C
ontr
o
l
De
s
ign
and
opti
miz
ati
on
of
mic
r
os
tr
ip
fi
lt
e
r
ing
ant
e
nna
w
it
h
modifi
e
d
s
hape
d
s
lot
s
…
(
Hana
A
bde
l
-
J
a
bbar
)
549
F
igur
e
4.
S
11
-
pa
r
a
mete
r
a
nd
ga
in
o
f
the
pr
opos
e
d
f
i
lt
e
r
ing
a
ntenna
F
igur
e
5.
S
11
-
pa
r
a
mete
r
of
the
pr
opos
e
d
f
il
ter
ing
a
ntenna
with
a
nd
without
DG
S
F
igur
e
6.
S
11
-
pa
r
a
mete
r
of
the
pr
opos
e
d
f
il
ter
ing
a
ntenna
f
or
d
if
f
e
r
e
nt
s
ha
pe
d
s
lot
s
4
4
.
5
5
5
.
5
6
6
.
5
7
7
.
5
8
-
6
0
-
5
0
-
4
0
-
3
0
-
2
0
-
1
0
0
F
R
E
Q
U
E
N
C
Y
(
G
H
z
)
S
-
P
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a
m
e
t
e
r
(
d
B
)
W
i
t
h
D
G
S
W
i
t
h
o
u
t
D
G
S
Evaluation Warning : The document was created with Spire.PDF for Python.
I
S
S
N
:
1693
-
6930
T
E
L
KO
M
NI
KA
T
e
lec
omm
un
C
omput
E
l
C
ontr
o
l
,
Vol.
18
,
No
.
1
,
F
e
br
ua
r
y
2020
:
545
-
551
550
F
igur
e
7.
3
-
D
view
r
a
diation
pa
tt
e
r
n
o
f
the
pr
opos
e
d
f
il
ter
ing
a
ntenna
a
t
=
6
.
45
GH
z
4.
CONC
L
USI
ON
A
c
ompac
t
f
il
ter
ing
a
ntenna
with
modi
f
ied
s
ha
pe
d
s
lot
s
ha
s
be
e
n
pr
opos
e
d
a
nd
s
u
c
c
e
s
s
f
ull
y
s
im
ulate
d
in
a
mi
c
r
os
tr
ip
tr
a
ns
mi
s
s
ion
li
ne
.
T
he
pr
opos
e
d
f
i
lt
e
r
ing
a
ntenna
is
de
s
igned
by
uti
li
z
ing
the
f
il
te
r
s
ynthes
is
a
ppr
oa
c
h.
De
pe
nding
on
the
e
quivale
nt
c
ir
c
uit
a
nd
s
pe
c
if
ica
ti
ons
of
the
s
e
c
ond
-
or
de
r
C
he
bys
he
v
lowp
a
s
s
f
il
ter
,
the
pr
opos
e
d
f
il
ter
ing
a
ntenna
ha
s
be
e
n
de
s
igned
a
nd
s
im
ulate
d.
T
he
de
s
ign
s
hows
good
pe
r
f
or
manc
e
,
s
uit
a
ble
f
or
high
-
s
pe
e
d
c
omm
unica
ti
on
a
ppli
c
a
ti
ons
.
T
he
pr
opos
e
d
f
il
ter
ing
a
ntenna
s
tr
uc
tur
e
with
S
I
R
t
e
c
hnique
pr
ovides
good
s
kir
t
s
e
lec
ti
vit
y.
AC
KNOWL
E
DGE
M
E
NT
S
Author
s
wis
h
to
e
xpr
e
s
s
their
thanks
f
or
the
s
upp
or
t
pr
ovided
by
the
innovation
p
r
ogr
a
mm
e
unde
r
gr
a
nt
a
gr
e
e
ment
H2020
-
M
S
C
A
-
I
T
N
-
2016
S
E
C
R
E
T
-
722424
.
RE
F
E
RE
NC
E
S
[
1]
A
H
u
s
s
ai
n
i
e
t
al
.
,
“
G
reen
F
l
ex
i
b
l
e
RF
fo
r
5
G
.
Fu
n
d
a
men
t
a
l
s
o
f
5
G
Mo
b
i
l
e
N
e
t
w
o
rk
s
,
”
J
o
h
n
W
i
l
e
y
a
n
d
S
o
n
s
.
p
p
.
2
4
1
–
2
7
2
,
2
0
1
5
.
[
2]
Y
.
I
.
A
.
Al
-
Y
a
s
i
r,
A
.
A
b
d
u
l
l
ah
,
N
.
O
j
ar
o
u
d
i
Parc
h
i
n
,
R
.
A
b
d
-
A
l
h
amee
d
,
J
.
N
o
ra
s
,
“
A
n
e
w
p
o
l
ar
i
zat
i
o
n
-
reco
n
fi
g
u
ra
b
l
e
an
t
e
n
n
a
fo
r
5
G
ap
p
l
i
cat
i
o
n
s
,
”
E
l
ec
t
r
o
n
i
cs
,
v
o
l
.
7
,
n
o
.
1
1
,
pp.
1
-
9
,
2
0
1
8
.
[
3]
H
.
W
.
L
i
u
,
B
.
P
.
Ren
,
S
.
L
i
,
X
.
H
.
G
u
an
,
P
.
W
en
,
X
.
X
i
ao
,
Y
.
Pen
g
,
“
H
i
g
h
-
T
em
p
erat
u
re
Su
p
erc
o
n
d
u
c
t
i
n
g
Ban
d
p
as
s
Fi
l
t
e
r
U
s
i
n
g
A
s
y
mm
et
r
i
c
St
ep
p
ed
-
Im
p
ed
a
n
ce
Res
o
n
at
o
r
s
W
i
t
h
W
i
d
e
-
S
t
o
p
b
a
n
d
Perfo
rma
n
ce,
”
IE
E
E
Tr
a
n
s
.
A
p
p
l
i
e
d
S
u
p
er
c
o
n
d
u
c
t
i
v
i
t
y
,
v
o
l
.
2
5
,
n
o
.
5
,
p
p
.
1
-
6
,
2
0
1
5
.
[
4]
Y
.
I
.
A
.
Al
-
Y
a
s
i
r,
N
.
O
j
aro
u
d
i
Parch
i
n
,
A
.
A
b
d
u
l
k
h
al
e
q
,
R
.
Abd
-
A
l
h
ameed
,
J
.
N
o
ras
,
“
Rece
n
t
Pro
g
res
s
i
n
t
h
e
D
e
s
i
g
n
o
f
4
G
/
5
G
Reco
n
fi
g
u
ra
b
l
e
Fi
l
t
er
s
,
”
E
l
ec
t
r
o
n
i
cs
,
v
o
l
.
8
,
n
o
.
1
,
p
p
.
1
-
17
,
2
0
1
9
.
[
5]
Y
.
I
.
A
b
d
u
l
r
ah
eem,
A
.
A
b
d
u
l
l
a
h
,
H
.
Mo
h
ammed
,
R
.
A
b
d
-
A
l
h
amee
d
,
J
.
N
o
ras
,
“
D
e
s
i
g
n
o
f
Freq
u
en
c
y
-
reco
n
fi
g
u
r
ab
l
e
Mu
l
t
i
b
an
d
Co
mp
ac
t
A
n
t
en
n
a
u
s
i
n
g
t
w
o
PIN
d
i
o
d
es
fo
r
W
L
A
N
/
W
i
MA
X
A
p
p
l
i
cat
i
o
n
s
,
”
IE
T
M
i
c
r
o
w
a
ves
,
A
n
t
e
n
n
a
s
a
n
d
P
r
o
p
a
g
a
t
i
o
n
,
v
o
l
.
1
1
,
n
o
.
8
,
p
p
.
1
0
9
8
-
1
1
0
5
,
2
0
1
7
.
[
6]
W
.
Ch
e
n
,
Y
.
Zh
ao
,
Z
.
Jun,
“
Co
mp
ac
t
an
d
W
i
d
e
U
p
p
er
-
S
t
o
p
b
a
n
d
T
r
i
p
l
e
-
Mo
d
e
Bro
a
d
b
a
n
d
Mi
cr
o
s
t
ri
p
BPF,
”
TE
LKO
M
NIK
A
Tel
ec
o
m
m
u
n
i
c
a
t
i
o
n
Co
m
p
u
t
i
n
g
E
l
ec
t
r
o
n
i
c
s
a
n
d
Co
n
t
r
o
l
,
v
o
l
.
10
,
n
o
.
2
,
p
p
.
3
5
3
-
3
5
8
,
2
0
1
2
.
[
7]
Y
.
Al
-
Y
a
s
i
r,
R
.
Abd
-
A
l
h
ameed
,
J
.
N
o
ra
s
,
A
.
A
b
d
u
l
k
h
al
eq
,
N
O
j
aro
u
d
i
Parch
i
n
,
“
D
es
i
g
n
o
f
V
er
y
Co
mp
ac
t
Co
m
b
l
i
n
e
Ban
d
-
Pa
s
s
Fi
l
t
er
fo
r
5
G
A
p
p
l
i
cat
i
o
n
s
,
”
Lo
u
g
h
b
o
r
o
u
g
h
A
n
t
e
n
n
a
s
&
P
r
o
p
a
g
a
t
i
o
n
Co
n
f
e
r
en
ce
,
U
K
,
v
o
l
.
1
,
p
p
.
1
-
4
,
2
0
1
8
[
8]
E
.
S
.
A
h
med
,
“
Co
mp
ac
t
D
u
al
-
Ba
n
d
Paral
l
el
Co
u
p
l
ed
T
-
Sh
ap
e
d
S
IR
Fi
l
t
er
f
o
r
W
L
A
N
A
p
p
l
i
ca
t
i
o
n
s
,
”
TE
LKO
M
NIKA
Tel
eco
m
m
u
n
i
ca
t
i
o
n
Co
m
p
u
t
i
n
g
E
l
ect
r
o
n
i
c
s
a
n
d
Co
n
t
r
o
l
,
v
o
l
.
1
5
,
n
o
.
4
,
p
p
.
1
6
7
7
-
1
6
8
1
,
2
0
1
7
.
[
9]
Y
.
I
.
A
.
Al
-
Y
as
i
r,
Y
.
T
u
,
N
.
O
j
aro
u
d
i
Parch
i
n
,
I
.
E
l
ferg
an
i
,
R
.
Abd
-
A
l
h
amee
d
,
J
.
Ro
d
ri
g
u
ez,
J
.
N
o
ras
,
“
Mi
x
e
d
-
co
u
p
l
i
n
g
mu
l
t
i
-
f
u
n
c
t
i
o
n
q
u
i
n
t
-
w
i
d
eb
a
n
d
as
y
mmet
r
i
c
s
t
e
p
p
e
d
i
mp
ed
a
n
ce
res
o
n
at
o
r
fi
l
t
er,
”
M
i
cr
o
w.
a
n
d
O
p
t
.
Tech
.
Let
t
,
vol.
6
1
,
n
o
.
5
,
p
p
.
1
1
8
1
-
1
1
8
4
,
2
0
1
9
.
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KO
M
NI
KA
T
e
lec
omm
un
C
omput
E
l
C
ontr
o
l
De
s
ign
and
opti
miz
ati
on
of
mic
r
os
tr
ip
fi
lt
e
r
ing
ant
e
nna
w
it
h
modifi
e
d
s
hape
d
s
lot
s
…
(
Hana
A
bde
l
-
J
a
bbar
)
551
[
10]
Mab
ro
k
M
.
,
Z
ah
ri
l
a
d
h
a
Z
.
,
Mas
ru
k
i
n
E
.
,
Su
t
i
k
n
o
T
.
,
O
t
h
man
A
.
R
.
,
N
u
r
h
as
n
i
za
E
.
,
“
Sw
i
t
ch
ab
l
e
D
u
al
-
b
an
d
Ban
d
p
as
s
Fi
l
t
e
r
Bas
ed
o
n
St
ep
p
ed
Imp
e
d
an
ce
Re
s
o
n
at
o
r
w
i
t
h
U
-
Sh
ap
e
d
D
efec
t
ed
M
i
cro
s
t
r
i
p
St
r
u
c
t
u
re
fo
r
W
i
re
l
es
s
A
p
p
l
i
cat
i
o
n
s
,
”
TE
LKO
M
NIKA
Tel
ec
o
m
m
u
n
i
c
a
t
i
o
n
Co
m
p
u
t
i
n
g
E
l
ec
t
r
o
n
i
cs
a
n
d
Co
n
t
r
o
l
,
v
o
l
.
1
7
,
n
o
.
2
,
p
p
.
1
0
3
2
-
1
0
3
9
,
2
0
1
9
.
[
11]
Y
.
I
.
A
.
Al
-
Y
a
s
i
r,
Y
.
T
u
,
M
.
S
.
Bak
r,
N
.
O
j
ar
o
u
d
i
Parc
h
i
n
,
A
.
S
.
A
s
h
araa,
W
.
A
.
Ms
h
w
a
t
,
R
.
A
.
A
b
d
-
A
l
h
ame
ed
,
J
.
M
.
N
o
ra
s
,
“
D
es
i
g
n
o
f
m
u
l
t
i
-
s
t
a
n
d
ar
d
s
i
n
g
l
e/
t
ri
/
q
u
i
n
t
-
w
i
d
eb
a
n
d
a
s
y
mme
t
ri
c
s
t
e
p
p
e
d
-
i
m
p
ed
a
n
ce
res
o
n
a
t
o
r
f
i
l
t
ers
w
i
t
h
ad
j
u
s
t
a
b
l
e
T
Z
s
,
”
IE
T
M
i
c
r
o
w
a
ves
,
A
n
t
e
n
n
a
s
&
P
r
o
p
a
g
a
t
i
o
n
,
v
o
l
.
1
3
,
n
o
.
1
0
,
p
p
.
1
6
3
7
–
1
6
4
5
,
2
0
1
9
.
[
12]
Y
.
I
.
A
.
Al
-
Y
as
i
r,
Y
.
T
u
,
N
.
O
j
aro
u
d
i
Parch
i
n
,
A
.
A
b
d
u
l
k
h
a
l
eq
,
J
.
K
o
s
h
a,
A
.
U
l
l
a
h
,
R
.
Abd
-
A
l
h
ameed
,
J
.
N
o
ras
,
“
N
ew
Mu
l
t
i
-
s
t
an
d
ard
D
u
al
-
W
i
d
eb
a
n
d
an
d
Q
u
a
d
-
W
i
d
e
b
a
n
d
A
s
y
mmet
ri
c
St
e
p
Imp
ed
a
n
ce
Res
o
n
at
o
r
Fi
l
t
ers
w
i
t
h
W
i
d
e
St
o
p
Ba
n
d
Res
t
ri
c
t
i
o
n
,
”
In
t
er
n
a
t
i
o
n
a
l
J
o
u
r
n
a
l
o
f
R
F
a
n
d
M
i
c
r
o
w
a
ve
Co
m
p
u
t
er
-
A
i
d
ed
E
n
g
i
n
eer
i
n
g
,
v
o
l
.
29
,
n
o
.
8
,
p
p
.
1
-
1
7
,
2
0
1
9
.
[
13]
M
.
K
.
Mo
h
s
e
n
,
M
.
S
.
M
.
I
s
a,
Z
.
Za
k
ari
a,
A
.
A
.
M
.
Is
a,
M
.
K
.
A
b
d
u
l
h
amee
d
,
“
E
l
ec
t
ro
n
i
ca
l
l
y
co
n
t
r
o
l
l
ed
ra
d
i
a
t
i
o
n
p
at
t
ern
l
eak
y
w
a
v
e
an
t
en
n
a
array
f
o
r
(C
b
an
d
)
ap
p
l
i
ca
t
i
o
n
,
”
TE
LK
O
M
NIK
A
Tel
ec
o
m
m
u
n
i
c
a
t
i
o
n
Co
m
p
u
t
i
n
g
E
l
ec
t
r
o
n
i
cs
a
n
d
C
o
n
t
r
o
l
,
v
o
l
.
1
7
,
n
o
.
2
,
p
p
.
5
7
3
–
5
7
9
,
2
0
1
9
.
[
14]
M
.
K
.
Mo
h
s
e
n
,
M
.
S
.
M
.
Is
a,
A
.
A
.
M
.
Is
a,
M
.
K
.
A
b
d
u
l
h
ameed
,
“
E
n
h
an
ceme
n
t
o
f
b
o
res
i
g
h
t
ra
d
i
a
t
i
o
n
f
o
r
l
ea
k
y
w
av
e
an
t
e
n
n
a
arra
y
,
”
TE
LKO
M
NIKA
Te
l
eco
m
m
u
n
i
ca
t
i
o
n
Co
m
p
u
t
i
n
g
E
l
ect
r
o
n
i
c
s
a
n
d
C
o
n
t
r
o
l
,
v
o
l
.
17
,
n
o
.
5
,
p
p
.
2
1
7
9
–
21
8
5
,
2
0
1
9
.
[
15]
T
.
Pu
rn
ami
rza,
S
.
H
as
b
i
,
I
.
M
.
Bi
n
Ib
rah
i
m
, M
.
Mu
l
y
o
n
o
,
F
.
A
mi
l
l
i
a,
D
.
Rah
mi
,
“
A
Rad
i
al
L
i
n
e
Sl
o
t
A
rray
(RL
SA
)
A
n
t
en
n
a
w
i
t
h
t
h
e
Sp
ec
i
fi
c
at
i
o
n
s
o
f
1
6
d
B
i
O
u
t
d
o
o
r
p
at
c
h
A
n
t
en
n
a,
”
TE
LKO
M
NIKA
Te
l
eco
m
m
u
n
i
ca
t
i
o
n
Co
m
p
u
t
i
n
g
E
l
ec
t
r
o
n
i
cs
a
n
d
C
o
n
t
r
o
l
,
v
o
l
.
1
6
,
n
o
.
1
,
p
p
.
4
6
-
6
2
,
2
0
1
8
.
[
16]
Y
.
Al
-
Y
a
s
i
r,
et
a
l
.
,
“
D
es
i
g
n
,
Si
m
u
l
a
t
i
o
n
an
d
Imp
l
emen
t
at
i
o
n
o
f
V
ery
C
o
mp
ac
t
D
u
a
l
-
b
a
n
d
Mi
c
ro
s
t
r
i
p
Ban
d
p
a
s
s
Fi
l
t
er
fo
r
4
G
an
d
5
G
A
p
p
l
i
ca
t
i
o
n
s
”
16
th
In
t
er
n
a
t
i
o
n
a
l
Co
n
f
e
r
en
ce
o
n
S
yn
t
h
es
i
s
,
M
o
d
el
i
n
g
,
A
n
a
l
ys
i
s
a
n
d
S
i
m
u
l
a
t
i
o
n
M
et
h
o
d
s
a
n
d
A
p
p
l
i
ca
t
i
o
n
s
t
o
Ci
r
c
u
i
t
D
e
s
i
g
n
(S
M
A
C
D
),
La
u
s
a
n
n
e
,
S
wi
t
z
e
r
l
a
n
d
,
p
p
.
4
1
-
4
4
,
2
0
1
9
.
[
17]
Y
.
I
.
A
.
A
I
-
Y
as
i
r,
N
.
O
.
J
ar
o
u
d
i
Parc
h
i
n
,
A
.
A
l
a
b
d
u
l
l
ah
,
W
.
Ms
h
w
at
,
A
.
U
l
l
a
h
a
n
d
R
.
A
b
d
-
A
l
h
amee
d
,
“
N
e
w
Pat
t
ern
Reco
n
f
i
g
u
rab
l
e
Ci
rcu
l
ar
D
i
s
k
A
n
t
e
n
n
a
U
s
i
n
g
T
w
o
PI
N
D
i
o
d
e
s
fo
r
W
i
Ma
x
/
W
i
F
i
(IE
E
E
8
0
2
.
1
1
a)
A
p
p
l
i
ca
t
i
o
n
s
,
”
16
th
In
t
e
r
n
a
t
i
o
n
a
l
Co
n
f
e
r
en
ce
o
n
S
yn
t
h
e
s
i
s
,
M
o
d
el
i
n
g
,
A
n
a
l
ys
i
s
a
n
d
S
i
m
u
l
a
t
i
o
n
M
e
t
h
o
d
s
a
n
d
A
p
p
l
i
ca
t
i
o
n
s
t
o
Ci
r
cu
i
t
D
es
i
g
n
(S
M
A
CD
),
La
u
s
a
n
n
e,
S
w
i
t
z
e
r
l
a
n
d
,
p
p
.
5
3
-
5
6
,
2
0
1
9
.
[
18]
A
.
J
ai
n
,
A
.
A
g
raw
a
l
,
“
D
e
s
i
g
n
a
n
d
O
p
t
i
m
i
zat
i
o
n
o
f
a
Mi
cro
s
t
r
i
p
Pa
t
ch
A
n
t
en
n
a
fo
r
I
n
creas
e
d
Ban
d
w
i
d
t
h
,”
In
t
e
r
n
a
t
i
o
n
a
l
Jo
u
r
n
a
l
o
f
E
l
ect
r
i
c
a
l
,
Co
m
p
u
t
e
r
,
E
n
er
g
et
i
c,
E
l
ec
t
r
o
n
i
c
a
n
d
Co
m
m
u
n
i
c
a
t
i
o
n
E
n
g
i
n
ee
r
i
n
g
,
vol.
7
,
n
o
.
2
,
p
p
.
1
9
1
-
1
9
5
,
2
0
1
3
.
[
19]
R.
K
u
mar,
D
.
D
h
u
b
k
ar
y
a,
“
D
e
s
i
g
n
a
n
d
a
n
al
y
s
i
s
o
f
c
i
rc
u
l
ar
ri
n
g
m
i
cro
s
t
r
i
p
a
n
t
e
n
n
a,
”
G
l
o
b
a
l
Jo
u
r
n
a
l
o
f
R
e
s
ea
r
c
h
In
E
n
g
i
n
eer
i
n
g
,
v
o
l
.
1
1
,
n
o
.
1
,
p
p
.
1
-
5
,
2
0
1
1
.
[
20]
L
.
C.
Pau
l
,
N
.
Su
l
t
a
n
,
“
D
es
i
g
n
,
s
i
m
u
l
a
t
i
o
n
an
d
p
erf
o
r
man
ce
an
al
y
s
i
s
o
f
a
l
i
n
e
fee
d
rect
an
g
u
l
ar
mi
cr
o
-
s
t
ri
p
p
at
ch
an
t
e
n
n
a,
”
In
t
e
r
n
a
t
i
o
n
a
l
Jo
u
r
n
a
l
o
f
E
n
g
i
n
ee
r
i
n
g
S
ci
e
n
ces
&
E
m
e
r
g
i
n
g
Tech
n
o
l
o
g
i
es
,
v
o
l
.
4
,
n
o
.
2
,
p
p
.
1
1
7
-
1
2
6
,
2
0
1
3
.
[
21]
A
.
Bo
u
a
l
l
e
g
,
N
.
Merab
t
i
n
e,
“
A
n
a
l
y
s
i
s
o
f
ra
d
i
a
t
i
o
n
p
a
t
t
ern
s
o
f
rect
a
n
g
u
l
ar
m
i
cro
s
t
r
i
p
a
n
t
e
n
n
a
s
w
i
t
h
t
h
e
u
n
i
f
o
rm
s
u
b
s
t
r
at
e.
S
e
m
i
c
o
n
d
u
c
t
o
r
P
h
y
s
i
c
s
Q
u
a
n
t
u
m
E
l
ect
r
o
n
i
c
s
&
O
p
t
o
el
ec
t
r
o
n
i
cs
,
v
o
l
.
8
,
n
o
.
3
,
p
p
.
8
8
-
9
1
,
2
0
0
5
.
[
22]
H.
W
.
L
i
u
,
C.
H
.
K
u
,
C.
F.
Y
a
n
g
,
“
N
o
v
e
l
CPW
-
fe
d
p
l
an
ar
mo
n
o
p
o
l
e
an
t
en
n
a
fo
r
W
i
MA
X
/
W
L
A
N
ap
p
l
i
cat
i
o
n
s
,”
IE
E
E
A
n
t
en
n
a
s
a
n
d
wi
r
el
e
s
s
p
r
o
p
a
g
a
t
i
o
n
l
et
t
er
s
,
v
o
l
.
9
,
p
p
.
2
4
0
-
2
4
3
,
2
0
1
0
.
[
23]
U
.
N
aeem,
S.
Bi
l
a,
S.
V
er
d
ey
me,
M.
T
h
év
e
n
o
t
,
an
d
T
.
Mo
n
é
d
i
ère
,
“
A
c
o
mp
ac
t
d
u
al
b
an
d
fi
l
t
er
-
a
n
t
e
n
n
a
s
u
b
s
y
s
t
em
fo
r
8
0
2
.
1
1
W
i
-
F
i
ap
p
l
i
cat
i
o
n
s
,”
Th
e
3
rd
E
u
r
o
p
ea
n
W
i
r
e
l
es
s
Tech
n
o
l
o
g
y
Co
n
f
e
r
en
ce
,
p
p
.
1
8
1
-
1
8
4
,
Pari
s
,
2
0
1
0
.
[
24]
J
.
Z
u
o
,
X
.
Ch
en
,
G
.
H
an
,
L
.
L
i
,
W
.
Z
h
an
g
,
“
An
i
n
t
eg
rat
e
d
ap
p
r
o
ach
t
o
RF
an
t
e
n
n
a
-
f
i
l
t
er
co
-
d
e
s
i
g
n
,
”
IE
E
E
A
n
t
e
n
n
a
s
a
n
d
W
i
r
el
e
s
s
P
r
o
p
a
g
a
t
i
o
n
Let
t
e
r
s
,
v
o
l
.
8
,
p
p
.
1
4
1
-
1
4
4
,
2
0
0
9
.
[
25]
J.
S.
G
.
H
o
n
g
an
d
M.
J
.
L
an
cas
t
er,
“
Mi
cr
o
s
t
ri
p
fi
l
t
e
r
s
fo
r
RF/
m
i
cro
w
av
e
a
p
p
l
i
ca
t
i
o
n
s
,
”
J
o
h
n
W
i
l
ey
&
S
o
n
s
,
p
p
.
1
-
4
7
6
,
2
0
0
1
.
[
26]
W
.
L
.
St
u
t
zman
,
G
.
A
.
T
h
i
e
l
e,
“
A
n
t
en
n
a
t
h
e
o
ry
a
n
d
d
es
i
g
n
,
”
J
o
h
n
W
i
l
ey
&
So
n
s
,
p
p
.
1
-
8
4
8
,
2
0
1
2
.
[
27]
L
.
Ch
en
,
Y
.
L
.
L
u
o
,
“
Co
mp
act
fi
l
t
er
i
n
g
an
t
e
n
n
a
u
s
i
n
g
C
RL
H
res
o
n
at
o
r
an
d
d
efec
t
ed
g
r
o
u
n
d
s
t
ru
c
t
u
re,
”
E
l
ect
r
o
n
i
cs
Let
t
e
r
s
,
v
o
l
.
5
0
,
n
o
.
2
1
,
p
p
.
4
9
6
-
1
4
9
8
,
O
c
t
o
b
er
2
0
1
4
.
[
28]
M.
K
o
zl
o
v
,
R.
T
u
rn
er,
“
A
co
m
p
ari
s
o
n
o
f
A
n
s
o
f
t
H
FSS
an
d
CST
mi
cro
w
av
e
s
t
u
d
i
o
s
i
mu
l
at
i
o
n
s
o
f
t
w
are
fo
r
mu
l
t
i
-
c
h
an
n
el
co
i
l
d
es
i
g
n
an
d
S
A
R
es
t
i
mat
i
o
n
at
7
T
MR
I,
”
P
i
er
s
o
n
l
i
n
e
,
v
o
l
.
6
,
n
o
.
4
,
p
p
.
3
9
5
-
3
9
9
,
2
0
1
0
.
[
29]
C.
T
.
Ch
u
an
g
,
S.
J
.
Ch
u
n
g
,
“
A
n
e
w
co
m
p
act
fi
l
t
er
i
n
g
an
t
e
n
n
a
u
s
i
n
g
d
efect
e
d
g
ro
u
n
d
res
o
n
a
t
o
r
,”
M
i
cr
o
w
a
ve
Co
n
f
er
e
n
ce
P
r
o
ceed
i
n
g
s
(
A
P
M
C),
A
s
i
a
-
Paci
f
i
c
,
p
p
.
1
0
0
3
-
1
0
0
6
,
2
0
1
0
.
[
30]
C.
K
.
L
i
n
,
S.
J
.
Ch
u
n
g
,
“
A
co
mp
ac
t
fi
l
t
er
i
n
g
mi
cro
s
t
r
i
p
a
n
t
e
n
n
a
w
i
t
h
q
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