T
E
L
KO
M
NIK
A
, V
ol
.
16
,
No.
6,
Dec
em
be
r
20
1
8,
p
p.2
59
7
~
2
60
7
IS
S
N: 1
69
3
-
6
93
0
,
accr
ed
ited
F
irst
Gr
ad
e b
y K
em
en
r
istekdikti,
Decr
ee
No: 2
1/E/
K
P
T
/20
18
DOI:
10.12928/TE
LK
OM
N
IK
A
.v
1
6i
6.
10494
25
97
Rec
ei
v
ed
J
ul
y
4
,
20
1
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;
Rev
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O
c
tob
er 1
,
20
1
8
;
A
c
c
ep
ted
O
c
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r
2
9
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01
8
Pr
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os
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ped
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ost
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p
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a
A
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ra
y
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r
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C
o
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pp
lica
tio
ns
Raad H. T
h
aher
*
,
No
o
r
Ba
q
ir
Ha
ss
an
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e
c
tr
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c
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1
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t
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n
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a
b
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fre
q
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g
e
.
Th
e
s
i
m
u
l
a
t
i
o
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re
s
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l
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e
o
b
ta
i
n
e
d
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r
th
e
o
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ti
m
u
m
p
a
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twa
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l
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c
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rk
A
n
a
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r
(VNA).
Th
e
m
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c
ro
s
tri
p
a
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n
a
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m
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t
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t
=
0
.
002
.T
h
e
s
i
m
u
l
a
ti
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a
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d
p
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c
ti
c
a
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s
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t
s
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p
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re
d
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Th
e
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e
o
f
th
e
a
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te
n
n
a
a
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s
(
33
×
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×
1
.
6
)
3
.
Th
i
s
a
rra
y
i
s
s
u
i
t
a
b
l
e
fo
r
s
a
te
l
l
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te
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o
m
m
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n
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c
a
ti
o
n
,
ra
d
a
r
a
p
p
l
i
c
a
t
i
o
n
.
Key
w
ords
:
U
W
B
,
m
i
c
ro
s
t
ri
p
a
n
te
n
n
a
a
rra
y
,
re
fl
e
c
ti
o
n
c
o
e
ff
i
c
i
e
n
t,
g
a
i
n
,
ra
d
i
ti
o
n
p
a
t
te
rn
.
Copy
righ
t
©
2
0
1
8
Uni
v
e
rsi
t
a
s
Ahm
a
d
D
a
hl
a
n.
All
rig
ht
s
r
e
s
e
rve
d
.
1.
Int
r
o
d
u
ctio
n
In
t
he
r
ec
en
t
y
ea
r
,
u
l
tr
a
w
i
d
e
-
ba
n
d
(
U
W
B
)
tec
hn
ol
og
y
was
u
nf
ol
de
d
gro
w
th
ex
p
er
i
en
c
e.
T
he
tw
o
s
er
i
ou
s
m
erit
of
U
W
B
tec
hn
ol
og
y
are
l
o
w
po
w
er
a
nd
hi
g
h
d
ata
r
at
e
b
y
tr
a
ns
m
i
tti
ng
ex
tr
em
el
y
s
h
ort p
ul
s
es
a
nd
s
pread
o
v
er
t
he
ba
n
d
w
i
dth
an
d rec
e
i
v
e
i
t s
ho
r
t
ac
c
urat
e a
n
d e
f
f
i
c
i
en
t
pu
l
s
es
[
1
,
2
].
F
CC
(
f
ed
eral
c
om
m
un
i
c
ati
o
n
c
om
m
i
s
s
i
on
)
g
i
v
e
U
W
B
tec
hn
o
l
og
y
i
n
du
s
tr
i
a
l
att
e
nti
on
a
nd
att
r
ac
ted
ac
a
de
m
i
a
i
n
wi
r
el
es
s
w
orld
i
t
a
l
l
o
wed
wi
d
e
un
l
i
c
en
s
e
d
ba
n
d
ab
ou
t
7.5
G
H
z
f
r
om
(
3.1
-
10
.
6)
G
H
z
wi
th
E
R
IP
(
E
f
f
ec
ti
v
e
Is
otro
pi
c
Rad
i
at
ed
P
o
wer
)
l
es
s
tha
n
-
4
1.3
dB
m
/MH
z
f
or
c
o
m
m
un
i
c
ati
on
a
pp
l
i
c
at
i
o
n
l
i
k
e
i
m
ag
i
ng
r
ad
ar,
r
em
ote
s
en
s
i
n
g
an
d
l
oc
a
l
i
z
a
ti
on
ap
p
l
i
c
at
i
on
[3,
4].
N
o
w
a
d
a
y
s
,
m
i
c
r
os
t
r
i
p
an
te
nn
a
pl
a
y
s
an
i
m
po
r
tan
t
r
o
l
e
b
ec
au
s
e
of
i
ts
l
i
g
ht
we
i
g
ht
l
o
w
c
o
s
t
p
l
an
ar
f
ab
r
i
c
ate
d
an
d
no
n
-
p
l
a
na
r
s
urf
ac
e,
w
h
en
i
t
i
s
m
ou
nte
d
o
n
r
i
gi
d
s
urf
ac
e
ha
s
r
ob
us
t
f
l
ex
i
bi
l
i
t
y
.
Ho
we
v
er,
m
i
c
r
os
t
r
i
p
an
ten
na
al
s
o
h
a
s
s
om
e
di
s
ad
v
an
t
ag
es
,
l
o
w
ga
i
n
,
n
arr
o
w
ba
nd
wi
d
th,
un
ac
c
ep
tab
l
e
ef
f
i
c
i
en
c
y
[
5
-
8
]
.
Mi
c
r
os
t
r
ip
an
te
nn
a
arr
a
y
was
us
ed
to
en
h
an
c
e
t
he
pe
r
f
or
m
an
c
e
of
s
i
ng
l
e
e
l
em
en
t
m
i
c
r
os
tr
i
p
an
te
nn
a.
T
he
ef
fi
c
i
en
c
y
an
d
di
s
tr
i
bu
t
i
o
n
v
o
l
t
ag
e
d
ep
e
nd
o
n
f
ee
di
ng
tec
hn
i
qu
e,
whe
n
v
o
l
tag
e
i
n
du
c
ed
i
n
on
e
p
oi
n
t
i
n
f
ee
d
t
ha
t
i
s
s
u
i
ta
bl
e
f
ee
d
ne
t
wor
k
[
9
].
T
w
o
f
ee
d
t
ec
h
ni
q
ue
ar
e
us
ed
i
n
m
i
c
r
os
tr
i
p
an
te
nn
a
arr
a
y
t
ha
t
r
es
po
ns
i
b
l
e
f
or
i
m
prov
i
ng
a
nte
n
na
pe
r
f
orm
a
nc
e
th
ere
ar
e
c
orpor
ate
f
ee
d
n
et
w
ork
an
d
s
erie
s
f
ee
d
ne
t
wor
k
.
T
he
c
orpor
ate
f
ee
d
h
as
hi
g
h
ga
i
n
o
v
er
f
r
eq
ue
nc
y
ba
nd
t
ha
t
m
ad
e
bro
ad
s
i
de
be
am
an
te
nn
a
wi
th
m
ai
n
dra
w
ba
c
k
i
s
r
are
ne
s
s
ef
f
i
c
i
en
c
y
b
ec
au
s
e
of
c
o
m
pl
i
c
at
e
d
an
d
l
o
ng
f
ee
d
i
ng
an
t
en
n
a
[6
,
7
,
9
-
11
]
.T
he
s
erie
s
f
ee
d
ne
t
wor
k
,
de
s
pi
te
of
s
i
m
pl
e
an
d
c
o
m
pa
c
t a
r
r
an
g
em
en
t f
ee
d
m
eth
od
bu
t
i
t
h
as
l
o
w
er
ga
i
n c
om
pa
r
ed
wi
th
c
orpor
at
e
f
ee
d [
6
,
9
]
.
T
o
propos
e
a
nte
nn
a
arr
a
y
i
s
wor
k
ed
w
i
t
hi
n
X
-
ba
nd
l
oc
at
i
o
n
f
or
w
i
r
e
l
es
s
c
om
m
un
i
c
ati
on
ap
pl
i
c
ati
on
es
pe
c
i
a
l
l
y
f
or
m
i
l
i
t
ar
y
ap
pl
i
c
ati
on
.
M
i
c
r
os
tr
i
p
arr
a
y
a
nte
n
na
wi
t
h
c
orp
orate
c
e
nte
r
f
ee
d
w
as
s
ug
ge
s
te
d a
n
d p
aram
etri
c
s
tud
y
was
i
nv
es
ti
g
ate
d
.
2.
S
ing
le
P
-
shap
ed
A
n
t
enn
a
T
he
s
i
ng
l
e
an
t
en
n
a
s
tr
uc
t
ure
f
o
r
U
W
B
i
s
s
ho
w
n
F
i
g
ure
1
.
I
t
was
de
s
i
gn
ed
b
y
F
R
-
4
s
ub
s
tr
ate
w
i
t
h
=
4.3
a
nd
he
i
gh
t
h
=
1.
6m
m
an
d
l
os
s
tan
ge
n
t
ta
n
=
0.
00
2.
T
he
op
ti
m
u
m
pa
r
am
ete
r
s
w
ere
l
i
s
t
ed
i
n
T
ab
l
e 1
.
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N: 16
93
-
6
93
0
T
E
L
KO
M
NIK
A
V
ol
.
16
,
No
. 6
, D
ec
em
be
r
20
18
:
25
9
7
-
2607
2598
(
a)
(
b)
F
i
g
ure
1
.
P
-
s
ha
pe
pa
tc
h
an
ten
n
a a
r
r
a
y
(
a)
p
a
tc
h p
l
an
e
(
b)
g
r
ou
n
d p
l
an
e
T
ab
l
e 1
.
A
nt
en
n
a
P
aram
ete
r
s
V
al
u
es
P
a
r
a
m
e
t
e
r
V
a
lue
P
a
r
a
m
e
t
e
r
V
a
lue
Ls
3
3
mm
X1
2
Ws
30
X2
2
.
8
Lg
10
X3
2
.
8
Wg
28
X4
0
.
5
Lf
18
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2
.
8
Wf
1
.
4
Y
4
.
5
R1
4
.
7
Z
8
.
5
R2
4
.
4
Ho
w
e
v
er
F
i
g
ure
2
s
ho
w
s
t
he
prac
t
i
c
al
r
es
ul
t
f
or
r
ef
l
ec
ti
on
c
oe
f
f
i
c
i
en
t
11
,
i
t
was
o
bs
erv
ed
that
the
r
es
ul
t
an
t
ba
nd
s
i
s
(
5.7
5
-
7.
74
)
G
H
z
,
(
9.
64
5
-
11
.9
25
)
G
H
z
i
n
whi
c
h
11
<
−
10
.
T
he
m
ax
i
m
u
m
ga
i
n
i
s
(
4.9
4
7)
dB
i
as
s
ho
w
n
i
n
F
i
gu
r
e
3.
T
he
r
ef
ore
a
2
-
el
em
en
t
arr
ay
an
ten
na
w
a
s
propos
e
d t
o
i
m
prov
e t
h
e g
a
i
n o
f
s
uc
h a
nte
n
na
F
i
g
ure
2
.
M
ea
s
ure
d res
ul
t o
f
r
ef
l
ec
ti
on
c
oe
f
f
i
c
i
en
t f
or P
-
s
ha
pe
pa
tc
h
an
te
nn
a a
r
r
a
y
F
i
g
ure
3
.
G
a
i
n c
u
r
v
e f
or
s
i
n
gl
P
-
s
ha
pe
pa
tc
h
an
t
en
na
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KO
M
NIK
A
IS
S
N: 1
69
3
-
6
93
0
P
r
op
os
e
d P
-
s
h
ap
e
d
Mi
c
r
os
tr
i
p
A
nte
nn
a
A
r
r
ay
fo
r
W
i
r
el
es
s
...
(
Raad
H. Th
ah
er
)
2599
3.
P
-
s
h
aped
UW
B
A
n
t
enn
a
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n
e
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m
m
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s
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ho
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n
i
n
F
ig
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4
.
N
o
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l
et
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i
n
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es
ti
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t
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h
e p
ar
am
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c
s
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ol
l
o
w
s
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a)
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b)
F
i
g
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4
.
P
-
s
ha
pe
an
t
en
na
arr
a
y
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a) t
op
v
i
e
w
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b) b
ott
o
m
v
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ew
3.1.
E
f
f
ec
t
of
C
ent
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F
ee
d
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eng
t
h
F
i
gu
r
e
5
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a)
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s
2
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l
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P
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pe
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d
F
i
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5
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ho
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11
v
s
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r
eq
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nc
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or
c
ha
n
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t
Y
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m
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ba
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11
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i
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f
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ter f
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n
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v
s
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r
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3.2.
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f
f
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ent
er
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d
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id
t
h
F
i
gu
r
e
6
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a)
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s
2
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ts
P
-
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pe
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t
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n
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arr
a
y
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d
F
i
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6
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b)
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ho
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s
11
v
s
.
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r
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nc
y
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or
c
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n
gi
n
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dth
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t
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s
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bs
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t
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t
n
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65
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m
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11
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d
B
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b)
F
i
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6
.
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f
f
ec
t o
f
c
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ter f
e
ed
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dth
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a) 2
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el
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ts
P
-
s
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p
ed
a
nte
n
na
arr
a
y
(
b)
11
v
s
.
f
r
eq
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nc
y
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N: 16
93
-
6
93
0
T
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16
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No
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20
18
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9
7
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2600
3.3.
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f
f
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i
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7
s
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a)
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pe
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t
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d
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ho
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s
11
v
s
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r
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y
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d
th
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z
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i
t
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s
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l
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r
th
at
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m
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v
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g
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n
d
wi
dt
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w
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th
(
i
.
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11
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-
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d
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a)
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i
g
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.
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f
f
ec
t o
f
ho
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i
z
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om
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ee
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el
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ts
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s
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ed
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nte
n
na
arr
a
y
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b)
11
v
s
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f
r
eq
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nc
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3.4.
E
f
f
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l
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s' F
e
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idt
h
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i
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ur
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ho
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s
11
v
s
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f
r
eq
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nc
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or
c
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n
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th
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dth
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em
en
ts
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ee
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i
t
i
s
no
te
d
tha
t
wf
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m
m
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v
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oo
d
ba
nd
wi
dt
h
(
i
.
e.
11
<
-
10
d
B
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.
(
a)
(
b)
F
i
g
ure
8
.
E
f
f
ec
t o
f
el
em
en
ts
' f
ee
d
w
i
d
th
(
a) 2
-
el
em
en
ts
P
-
s
ha
pe
d a
nte
n
na
arr
a
y
(
b)
11
v
s
.
f
r
eq
ue
nc
y
3.5.
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f
f
ec
t
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G
r
o
u
n
d
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eng
t
h
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i
g
ur
e
s
9
(
a
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b)
s
h
o
w
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11
v
s
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f
r
eq
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y
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or
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l
e
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th
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nd
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i
t
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th
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m
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an
d
wi
dt
h
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i
.e
.
11
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d
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a)
(
b)
F
i
g
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9
.
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f
f
ec
t o
f
groun
d l
en
gt
h (a)
2
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e
l
em
en
ts
P
-
s
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pe
d
an
te
nn
a
arr
a
y
(
b)
11
v
s
.
f
r
eq
ue
nc
y
Evaluation Warning : The document was created with Spire.PDF for Python.
T
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L
KO
M
NIK
A
IS
S
N: 1
69
3
-
6
93
0
P
r
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2601
3.6.
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f
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r
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63
-
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H
z
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1
1.2
7
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11
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5
26
)
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H
z
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14
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-
1
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H
z
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d
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16
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6
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.
58
)
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H
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12
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r
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10
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r
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r
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11
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i
gu
r
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12
.
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f
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et
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hi
ng
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l
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n
grou
nd
T
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op
t
i
m
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r
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er
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r
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graph
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ab
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r
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.
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mm
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mm
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Ls
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6
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0
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5
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ht
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4
.
6
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4
.
3
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1
h
1
.
6
s
1
.
7
5
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N: 16
93
-
6
93
0
T
E
L
KO
M
NIK
A
V
ol
.
16
,
No
. 6
, D
ec
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be
r
20
18
:
25
9
7
-
2607
2602
t
0
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0
3
5
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a)
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b)
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i
g
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13
.
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r
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a
l
2
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em
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pe
d a
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n
na
arr
a
y
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a) to
p
v
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w (
b) bo
tto
m
v
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e
w
F
i
g
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14
.
C
om
pa
r
i
s
on
th
e
m
ea
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ured res
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ts
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d
s
i
m
ul
ate
d res
u
l
ts
11
v
s
. f
r
eq
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nc
y
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urv
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F
i
gu
r
e
14
s
h
o
w
s
ares
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na
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l
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em
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et
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s
i
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f
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t
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A
l
s
o
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s
a
s
l
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t
d
i
f
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on
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the
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n
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b
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d
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d
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he
S
M
A
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ter'
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i
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ul
ati
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ten
na
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a
y
s
of
f
er
go
od
m
atc
hi
ng
f
or
f
r
eq
ue
nc
i
es
c
ov
eri
ng
(
8.1
56
7
-
9.3
81
1)
G
H
z
,
wi
t
h
r
ef
l
ec
ti
o
n
c
oe
f
f
i
c
i
en
t
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ab
o
ut
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-
41
.
55
3)
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at
f
r
eq
ue
nc
y
of
(
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29
)
G
H
z
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al
s
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i
t
c
o
v
ers
an
ot
he
r
b
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d
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11
.2
7
9
-
11
.3
59
)
G
H
z
,
(
1
4.4
8
2
-
1
4.8
7
7)
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H
z
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d(1
6.2
7
5
-
16
.
59
3)
G
H
z
whi
l
e
th
e
f
ab
r
i
c
at
i
on
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te
nn
a
of
f
ers
go
od
m
atc
hi
ng
op
erat
i
o
n
f
or
f
r
eq
ue
nc
i
es
c
o
v
eri
ng
(
8.
03
5
-
8.9
4
5)
G
H
z
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wi
t
h
r
ef
l
ec
ti
o
n c
oe
f
f
i
c
i
en
t o
f
(
-
29
.77
8)
d
B
at
f
r
eq
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en
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(
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25)
G
H
z
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s
o
o
f
f
er
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atc
hi
n
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at
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ds
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1
0.1
8
-
1
0.3
3)
G
H
z
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(
1
1.2
8
5
-
12
.0
65
)
G
H
z
,
(
13
.4
3
-
1
4.2
1),
(
1
7.0
7
-
18
.5
)
G
H
z
.
T
he
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i
n
of
th
e
m
od
i
f
i
ed
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t
en
n
a
arr
a
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i
s
(
5.6
3
5
-
8.3
0
5
)
d
B
i
as
s
ho
w
n
i
n
F
ig
ure
15
.
F
i
g
ure
15
.
T
he
g
ai
n o
f
2
-
el
em
en
t P
-
s
ha
pe
d a
n
ten
na
a
r
r
a
y
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KO
M
NIK
A
IS
S
N: 1
69
3
-
6
93
0
P
r
op
os
e
d P
-
s
h
ap
e
d
Mi
c
r
os
tr
i
p
A
nte
nn
a
A
r
r
ay
fo
r
W
i
r
el
es
s
...
(
Raad
H. Th
ah
er
)
2603
4.
Cu
r
r
ent
D
i
stribu
t
ion
and
R
adiat
ion
P
att
er
n
s
T
o
c
l
arif
y
d
eta
i
l
s
a
bo
ut
the
prope
r
t
i
es
of
propos
e
d
an
te
nn
a
arr
a
y
,
s
om
e
f
r
eq
ue
nc
i
e
s
are
c
ho
s
en
to
i
l
l
us
tr
ate
t
he
c
urr
en
t
di
s
tr
i
bu
t
i
on
an
d
r
a
di
a
ti
on
pa
t
terns
.
T
he
c
urr
en
t
di
s
tr
i
bu
ti
on
s
of
propos
e
d
a
nte
nn
a
arr
a
y
ar
e
s
ho
wn
i
n
F
ig
ure
16
at
f
r
eq
ue
nc
i
es
(
8.4
1
,
9
.13
2,
9.
24
8,
11
.41
2,
14
.6
8,
an
d
1
6.4
28
)
G
H
z
r
e
s
pe
c
ti
v
el
y
an
d
t
he
y
i
l
l
us
tr
at
e
m
ax
i
m
u
m
c
urr
en
ts
are
g
en
e
r
at
ed
on
an
te
nn
a
arr
a
y
s
urf
ac
e.
A
l
s
o
th
e
3D
f
arf
i
el
d
r
ad
i
at
i
o
n
pa
tte
r
ns
f
or
prop
os
ed
an
t
e
nn
a
arr
a
y
h
as
m
a
x
i
m
u
m
di
r
ec
ti
v
i
ti
e
s
(
8.3
7,
7.
16
,
7.0
5
,
7.
73
,
8.0
1
an
d
5.8
3
)
dB
i
r
es
pe
c
t
i
v
el
y
as
s
ho
w
n
i
n
F
i
gu
r
e
17
.
T
he
r
a
di
ati
on
p
a
tte
r
ns
f
or
the
pr
op
os
e
d
a
nt
en
na
arr
a
y
are
i
l
l
us
tr
at
ed
i
n
F
i
gu
r
e
18
i
n
E
-
pl
an
e
a
nd
H
-
p
l
a
ne
f
or
prev
i
ou
s
f
r
eq
ue
nc
i
es
.
F
r
om
t
he
s
e
f
i
gu
r
es
,
i
t's
n
ote
d
t
ha
t,
bi
-
di
r
ec
t
i
on
al
pa
tte
r
ns
are r
ad
i
at
ed
f
orm
t
hi
s
arr
a
y
an
ten
na
.
(
a)
8.41
G
H
z
(
b) 9.13
2
G
H
z
(
c
)
9.248
G
H
z
(
d)
11
.4
12
G
H
z
(
e)
14
.6
8
G
H
z
(
f
)
16.428
G
H
z
F
i
g
ure
16
.
T
he
c
urr
en
t d
i
s
tr
i
bu
t
i
o
ns
of
th
e a
nte
nn
a
arr
a
y
f
or f
r
eq
u
en
c
i
es
(a
)
8.
41
G
H
z
(
b)
9.1
3
2
G
H
z
(
c
)
9.2
4
8
G
H
z
(
d)
11
.
41
2
G
H
z
(
e)
1
4.6
8
G
H
z
(
f
)
16
.4
28
G
H
z
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
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N: 16
93
-
6
93
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16
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be
r
20
18
:
25
9
7
-
2607
2604
(
a)
8.41
G
H
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(
b)
9.1
3
2
G
H
z
(
c
)
9.248
G
H
z
(
d)
1
1.4
12
G
H
z
(
e)
14
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8
G
H
z
(
f
)
16.428
G
H
z
F
i
g
ure
17
.
3D f
arf
i
el
d ra
di
at
i
on
pa
tt
erns
f
or f
r
eq
ue
nc
i
es
(
a)
8.41
G
H
z
(
b)
9.1
3
2
G
H
z
(
c
)
9.2
4
8
G
H
z
(
d)
11
.
41
2
G
H
z
(
e)
1
4.6
8
G
H
z
(
f
)
16
.4
28
G
H
z
Evaluation Warning : The document was created with Spire.PDF for Python.
T
E
L
KO
M
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A
IS
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N: 1
69
3
-
6
93
0
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r
op
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ap
e
d
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c
r
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tr
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p
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nte
nn
a
A
r
r
ay
fo
r
W
i
r
el
es
s
...
(
Raad
H. Th
ah
er
)
2605
E
-
F
i
e
l
d
H
-
f
i
el
d
(
a)
8.41
G
H
z
E
-
F
i
e
l
d
H
-
f
i
el
d
(
b)
9.1
3
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G
H
z
E
-
F
i
e
l
d
H
-
f
i
el
d
(
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G
H
z
F
i
gu
r
e
18
.
S
i
m
ul
at
ed
-
r
ad
i
at
i
on
pa
tt
erns
f
or P
-
s
ha
pe
d a
nte
n
na
arr
a
y
f
or f
r
eq
ue
nc
i
e
s
(
a) 8.41
G
H
z
(
b)
9.1
3
2
G
H
z
(
c
)
9.
28
4
G
H
z
Evaluation Warning : The document was created with Spire.PDF for Python.
IS
S
N: 16
93
-
6
93
0
T
E
L
KO
M
NIK
A
V
ol
.
16
,
No
. 6
, D
ec
em
be
r
20
18
:
25
9
7
-
2607
2606
E
-
F
i
e
l
d
H
-
f
i
el
d
(
d)
11
.4
12
G
H
z
E
-
F
i
e
l
d
H
-
F
i
el
d
(
e)
14
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8
G
H
z
E
-
F
i
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l
d
H
-
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i
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(
f
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16.428
G
H
z
F
i
gu
r
e
18
.
S
i
m
ul
at
ed
-
r
ad
i
at
i
on
pa
tt
erns
f
or P
-
s
ha
pe
d a
nte
n
na
arr
a
y
f
or
f
r
eq
ue
nc
i
e
s
(
d) 11.4
12
G
H
z
(e
)
1
4.6
8
G
H
z
(f
)
16
.42
8
G
H
z
5.
Co
n
clusion
A
P
-
s
ha
pe
d
an
te
nn
a
f
or
wi
r
el
es
s
c
om
m
un
i
c
ati
on
i
s
prop
os
ed
an
d
th
en
an
ar
r
a
y
i
s
i
m
pl
em
en
ted
.
Ho
wev
er
th
e
s
i
ng
l
e
P
-
s
ha
pe
d
c
ha
r
ac
t
eris
ti
c
s
w
ere
i
n
v
es
t
i
ga
t
ed
an
d
t
he
n
th
e
2
-
el
em
en
t
P
-
s
ha
p
ed
a
nte
n
na
i
s
propos
ed
an
d
m
od
i
f
i
ed
to
en
h
an
c
e
th
e
ga
i
n.
A
l
s
o
i
t
was
f
ou
nd
Evaluation Warning : The document was created with Spire.PDF for Python.