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11591/i
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[
1]
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W
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on
A
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nna
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s
and A
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, D
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c
. 2022, pp. 1
–
6.
do
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10.1109/C
A
M
A
56352.2022.10002430.
[
2]
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.
P
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)
,
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b.
2019,
pp.
344
–
346. do
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10.1109/I
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C
C
.2019.8662324.
[
3]
A
.
H
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,
M
.
S
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m
on P
has
e
d
A
r
r
ay
Sy
s
te
m
&
T
e
c
hnol
ogy
(
P
A
S
T
)
,
O
c
t.
2019,
pp.
1
–
6. do
i:
10.1109/
P
A
S
T
43306.2019.9020960.
[
4]
N
.
T
.
N
ha
n,
D
.
B
.
M
.
H
o
a
ng,
a
nd
T
.
H
.
N
ghi
,
“
A
na
l
y
s
is
of
th
e
po
s
s
ib
il
it
y
of
us
in
g
a
n
a
ut
oc
o
r
r
e
la
ti
o
n
r
e
c
e
i
v
e
r
in
r
a
di
o
mo
ni
t
o
r
in
g
to
o
ls
,”
in
2024
C
onf
e
r
e
nc
e
o
f
Y
oung
R
e
s
e
ar
c
he
r
s
in
E
le
c
tr
ic
al
and
E
le
c
tr
oni
c
E
ngi
ne
e
r
in
g
(
E
lC
on)
,
J
a
n.
2024,
pp.
899
–
901.
do
i:
10.1109/E
l
C
o
n61730.2024.10468296.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
do
n
e
s
i
a
n
J
E
l
e
c
E
n
g
&
C
o
m
p
S
c
i
I
S
S
N:
2
5
0
2
-
4
7
52
C
ali
br
ati
on
o
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phas
e
d
ar
r
ay
antenna
w
it
h
the
minimum
point
f
indi
ng
me
tho
d
…
(
N
guy
e
n
X
uan
L
uon
g
)
863
[
5]
K
.
T
e
mi
r
, M
. S
. A
k
y
u
z
, a
nd Y
. K
. A
lp
, “
C
o
ns
id
e
r
a
ti
o
n
of
e
n
v
i
r
o
nm
e
nt
a
l
a
nd
f
un
c
ti
o
na
l
f
a
c
t
o
r
s
i
n c
a
li
br
a
ti
o
n
of
a
nt
e
nna
i
nt
e
gr
a
te
d
a
c
ti
v
e
pha
s
e
d
a
r
r
a
y
tr
a
ns
mi
tt
e
r
s
,”
in
2016
I
E
E
E
I
nt
e
r
nat
io
nal
Sy
m
pos
iu
m
on
P
has
e
d
A
r
r
ay
Sy
s
te
m
s
an
d
T
e
c
hnol
ogy
(
P
A
ST
)
,
O
c
t.
2016, pp. 1
–
5. do
i:
10.1109/AR
R
A
Y
.2016.7832558.
[
6]
R
.
S
or
a
c
e
,
“
P
ha
s
e
d
a
r
r
a
y
c
a
li
b
r
a
ti
o
n,”
in
P
r
oc
e
e
di
ngs
2000
I
E
E
E
I
nt
e
r
nat
io
nal
C
onf
e
r
e
nc
e
on
P
has
e
d
A
r
r
ay
Sy
s
te
m
s
and
T
e
c
hnol
ogy
(
C
at
. N
o.00T
H
8510)
, 2000, pp. 533
–
536. do
i:
10.1
10
9/
P
A
S
T
.2000.859013.
[
7]
A
.
A
gr
a
w
a
l
a
nd
A
.
J
a
bl
o
n,
“
A
c
a
li
br
a
ti
o
n
t
e
c
hni
qu
e
f
or
a
c
ti
ve
p
ha
s
e
d
a
r
r
a
y
a
nt
e
nna
s
,”
in
I
E
E
E
I
nt
e
r
nat
io
nal
Sy
m
pos
iu
m
on
P
h
as
e
d
A
r
r
ay
Sy
s
te
m
s
and T
e
c
hnol
ogy
, 2003.
, 2003, pp. 223
–
228. do
i:
10.1109/P
A
S
T
.2003.1256985.
[
8]
W
.
P
.
M
.
N
.
K
e
i
z
e
r
,
“
F
a
s
t
a
nd
a
c
c
ur
a
t
e
a
r
r
a
y
c
a
li
br
a
ti
o
n
us
in
g
a
s
y
nt
h
e
ti
c
a
r
r
a
y
a
ppr
o
a
c
h,”
I
E
E
E
T
r
ans
ac
ti
ons
on
A
nt
e
nnas
and
P
r
opagati
on
,
vo
l.
59, n
o
. 11, pp. 4115
–
4122, N
ov
. 2011, d
o
i:
1
0.1109/
T
A
P
.2011.2164171.
[
9]
G
.
A
.
H
a
mps
o
n
a
nd
A
.
B
.
S
m
ol
de
r
s
,
“
A
f
a
s
t
a
nd
a
c
c
ur
a
t
e
s
c
h
e
m
e
f
or
c
a
li
b
r
a
ti
o
n
of
a
c
ti
ve
pha
s
e
d
-
a
r
r
a
y
a
nt
e
nna
s
,”
in
I
E
E
E
A
nt
e
n
nas
and
P
r
opagati
on
Soc
ie
ty
I
nt
e
r
nat
io
nal
Sy
m
pos
iu
m
.
1999
D
ig
e
s
t.
H
e
ld
in
c
onj
unc
ti
on
w
it
h:
U
SN
C
/UR
SI
N
at
io
nal
R
adi
o
Sc
ie
nc
e
Me
e
ti
ng (
C
at
. N
o.99C
H
37010)
, 1999, vo
l.
2, pp. 1040
–
1043. d
o
i:
10.1109/AP
S
.1999.789490.
[
10]
G
.
H
.
C
.
V
a
n
W
e
r
kha
v
e
n
a
nd
A
.
K
.
G
o
ls
ha
y
a
n,
“
C
a
li
br
a
ti
o
n
a
s
pe
c
ts
of
th
e
A
P
A
R
a
nt
e
nna
uni
t,
”
in
P
r
oc
e
e
di
ngs
2000
I
E
E
E
I
nt
e
r
nat
io
nal
C
onf
e
r
e
n
c
e
on
P
has
e
d
A
r
r
a
y
Sy
s
te
m
s
and
T
e
c
hnol
ogy
(
C
at
.
N
o.00T
H
8510)
,
2000,
pp.
425
–
428.
do
i:
10.1109/P
A
S
T
.2000.858989.
[
11]
C
.
F
ul
to
n
a
nd
W
.
C
ha
ppe
ll
,
“
C
a
li
br
a
ti
o
n
t
e
c
hni
qu
e
s
f
or
di
g
it
a
l
pha
s
e
d
a
r
r
a
y
s
,”
in
2009
I
E
E
E
I
nt
e
r
nat
io
nal
C
onf
e
r
e
nc
e
on
M
ic
r
ow
av
e
s
, C
om
m
uni
c
at
io
ns
, A
nt
e
nna
s
and E
le
c
tr
oni
c
s
S
y
s
te
m
s
, N
o
v
. 2009, pp. 1
–
10. d
o
i
:
10.1109/C
O
M
C
A
S
.2009.5385979.
[
12]
M
.
S
a
r
c
i
o
ne
e
t
al
.
,
“
T
h
e
d
e
s
ig
n,
de
ve
l
o
pm
e
nt
a
nd
te
s
ti
ng of
th
e
T
H
A
A
D
(
th
e
a
t
e
r
hi
gh
a
lt
it
ud
e
a
r
e
a
de
f
e
ns
e
)
s
o
li
d
s
ta
t
e
pha
s
e
d
a
r
r
a
y
(
f
o
r
m
e
r
l
y
g
r
o
und
ba
s
e
d
r
a
da
r
)
,”
in
P
r
oc
e
e
di
ngs
of
I
nt
e
r
nat
io
nal
Sy
m
pos
iu
m
on
P
has
e
d
A
r
r
ay
Sy
s
te
m
s
and
T
e
c
hnol
ogy
,
1996,
pp.
260
–
265. do
i:
10.1109/
P
A
S
T
.1996.566096.
[
13]
S.
-
C
.
C
ha
e
,
H
.
-
W
.
J
o
,
J
.
-
I
.
O
h, G
. K
im
,
a
nd
J
.
-
W
.
Y
u,
“
C
o
upl
e
r
i
nt
e
gr
a
t
e
d
mi
c
r
o
s
tr
ip
pa
t
c
h
li
ne
a
r
pha
s
e
d
a
r
r
a
y
f
or
s
e
l
f
-
c
a
li
br
a
ti
o
n,”
I
E
E
E
A
nt
e
nnas
and
W
ir
e
le
s
s
P
r
opagati
on L
e
tt
e
r
s
, vo
l.
19, n
o
.
9, pp. 1615
–
1619, S
e
p. 2020, d
o
i:
10.1109/
L
A
W
P
.2020.30118
62.
[
14]
M
.
S
c
o
tt
,
“
S
A
M
P
S
O
N
M
F
R
a
c
ti
v
e
pha
s
e
d
a
r
r
a
y
a
nt
e
nna
,”
i
n
I
E
E
E
I
nt
e
r
nat
io
nal
Sy
m
pos
iu
m
on
P
has
e
d
A
r
r
ay
Sy
s
te
m
s
and
T
e
c
hnol
ogy
, 2003
.
, 2003, pp. 119
–
123. do
i:
10.1109/P
A
S
T
.200
3.1256967.
[
15]
Z
.
G
h
o
r
ba
ni
a
nd
S
.
E
.
H
o
s
s
e
in
i,
“
M
ut
ua
l
c
o
upl
in
g
c
o
mp
e
ns
a
ti
o
n
in
a
r
r
a
y
a
nt
e
nna
s
us
in
g
is
o
la
te
d
-
e
l
e
m
e
nt
pa
tt
e
r
n
a
ppr
o
a
c
h,”
in
2019 Six
th
I
r
ani
an C
onf
e
r
e
nc
e
on R
adar
and Sur
v
e
il
la
nc
e
Sy
s
t
e
m
s
, D
e
c
. 20
19, pp. 1
–
3. d
o
i:
10.1109/I
C
R
S
S
48293.2019.9026
551.
[
16]
A
. N
a
f
e
,
K
. K
ib
a
r
o
gl
u, M
. S
a
y
gi
n
e
r
, a
nd G
. M
. R
e
be
i
z
, “
A
n i
n
-
s
it
u s
e
lf
-
te
s
t
a
nd s
e
l
f
-
c
a
li
br
a
ti
o
n t
e
c
hni
qu
e
ut
il
i
z
in
g a
nt
e
nna
mu
tu
a
l
c
o
upl
in
g
f
o
r
5
G
mul
ti
-
b
e
a
m
T
R
X
pha
s
e
d a
r
r
a
y
s
,”
i
n
2019 I
E
E
E
M
T
T
-
S I
n
te
r
nat
io
nal
M
ic
r
ow
av
e
Sy
m
pos
iu
m
(
I
M
S)
, J
un. 2019,
pp.
1229
–
1232. do
i:
10.1109/M
W
S
Y
M
.2019.8701072.
[
17]
A
.
M
.
S
hi
ti
k
ov
a
nd
A
.
V
.
B
o
nda
r
ik
,
“
M
ul
ti
-
e
l
e
m
e
nt
P
A
A
c
a
li
br
a
ti
o
n
w
it
h
R
E
V
m
e
th
o
d,”
in
4t
h
I
nt
e
r
nat
io
nal
C
onf
e
r
e
nc
e
on
A
nt
e
nna T
he
or
y
and T
e
c
hni
que
s
(
C
at
. N
o.03E
X
699)
, 2003, vo
l.
2, pp. 761
–
764. do
i:
10.1109/
I
C
A
T
T
.2003.1238859.
[
18]
M
.
L
iu
a
nd
Z
.
F
e
ng,
“
C
o
mbi
n
e
d
r
ot
a
ti
ng
-
e
l
e
me
n
t
e
l
e
c
t
r
i
c
-
f
i
e
l
d
ve
c
t
o
r
(
C
R
E
V
)
me
th
o
d
f
or
n
e
a
r
f
i
e
ld
c
a
li
b
r
a
ti
o
n
of
pha
s
e
d
a
r
r
a
y
a
nt
e
nna
,”
in
2007
I
nt
e
r
nat
io
nal
C
on
f
e
r
e
nc
e
on
M
ic
r
o
w
av
e
and
M
il
li
m
e
te
r
W
av
e
T
e
c
hnol
ogy
,
A
pr
.
2007,
pp.
1
–
4.
do
i:
10.1109/I
C
M
M
T
.2007.381281.
[
19]
B
.
W
a
ng,
Y
.
L
i,
a
nd
B
.
T
ia
n,
“
R
o
ta
ti
ng
-
e
le
m
e
nt
e
l
e
c
t
r
i
c
-
f
i
e
ld
ve
c
t
o
r
(
R
E
V
)
c
a
li
br
a
ti
o
n
me
th
o
d
ba
s
e
d
o
n
p
o
w
e
r
m
e
a
s
ur
e
m
e
nt
f
o
r
pha
s
e
d a
r
r
a
y
a
nt
e
nna
,”
i
n
2017 I
nt
e
r
n
at
io
nal
A
ppl
ie
d C
om
put
at
io
nal
E
le
c
tr
om
agne
ti
c
s
Soc
ie
t
y
Sy
m
pos
iu
m
(
A
C
E
S)
, 2017, pp. 1
–
2.
[
20]
W
.
F
a
n,
Y
.
Z
ha
ng,
Z
.
W
a
ng,
a
nd
F
.
Z
ha
ng,
“
L
a
r
g
e
-
s
c
a
le
pha
s
e
d
a
r
r
a
y
c
a
li
b
r
a
ti
o
n
ba
s
e
d
o
n
a
mpl
it
ude
-
o
nl
y
m
e
a
s
ur
e
m
e
nt
w
it
h
th
e
mul
ti
r
o
und g
r
o
upe
d
-
R
E
V
m
e
th
o
d,”
I
E
E
E
T
r
ans
ac
ti
ons
on A
n
te
nnas
and
P
r
opagati
on
,
vo
l.
72, n
o
. 1,
pp. 454
–
465,
J
a
n. 2024,
do
i:
10.1109/
T
A
P
.2023.3333387.
[
21]
T
.
T
a
ka
ha
s
hi
,
Y
.
K
o
ni
s
hi
,
S
.
M
a
ki
n
o
,
H
.
O
hmi
ne
,
a
nd
H
.
N
a
k
a
gur
o
,
“
F
a
s
t
m
e
a
s
ur
e
m
e
nt
t
e
c
hni
qu
e
f
o
r
pha
s
e
d
a
r
r
a
y
c
a
li
b
r
a
ti
o
n,”
I
E
E
E
T
r
ans
ac
ti
on
s
on A
nt
e
nnas
and P
r
opagati
on
,
vo
l.
56, n
o
.
7, pp. 1888
–
1899, J
ul
. 2008, do
i:
10.1109/
T
A
P
.2008.924682.
[
22]
D
.
S
c
hv
a
r
tz
ma
n,
J
.
D
.
D
.
D
ía
z
,
D
.
Z
r
ni
ć
,
M
.
H
e
r
nd
o
n,
M
.
B
.
Y
e
a
r
y
,
a
nd
R
.
D
.
P
a
lm
e
r
,
“
H
o
l
o
gr
a
phi
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ol
.
1,
pp.
295
–
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2023, d
o
i:
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T
R
S
.2023.3286849.
[
23]
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. T
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ov
.
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pp.
311
–
313.
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51264.2020.9334371.
[
24]
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,
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ug.
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pp.
1
–
5.
do
i:
10.1109/I
C
S
P
C
C
.2013.6664097.
[
25]
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pos
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(
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, 2017, pp. 1
–
2.
[
26]
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.
J
.
S
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o
.
9,
pp.
5919
–
5933, S
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p. 2019, d
o
i:
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A
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