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s
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H
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.
D
et
ai
l
s
of
t
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pos
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en
na d
es
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m
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at
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s
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w
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:
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nna;
R
F
I
D
(
R
adi
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r
eq
uen
c
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d
ent
i
f
i
c
at
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;
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opl
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f
e
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t
©
2
01
7
I
n
s
t
i
t
u
t
e
o
f
A
d
v
a
n
c
e
d
E
n
g
i
n
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n
g
a
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d
S
c
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e
.
A
l
l
r
i
g
h
t
s r
es
er
ved
.
1
.
I
n
tr
o
d
u
c
ti
o
n
R
F
I
D
(
r
adi
o
f
r
eque
nc
y
i
d
ent
i
f
i
c
at
i
on)
i
s
a
t
ec
hn
ol
o
g
y
t
hat
i
nc
or
p
or
at
es
t
he
us
e
of
el
ec
t
r
om
agnet
i
c
or
el
ec
t
r
os
t
at
i
c
c
oup
l
i
ng
i
n
t
he
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o
f
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(
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F
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por
t
i
on
of
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h
e
el
ec
t
r
om
agnet
i
c
s
pec
t
r
um
t
o uni
que
l
y
i
de
nt
i
f
y
an o
bj
ec
t
,
ani
m
al
,
or
per
s
on [
1
-
2
]. R
F
ID
i
s co
m
i
n
g
i
nt
o
i
nc
r
eas
i
ng
us
e
i
n
i
nd
us
t
r
y
f
or
t
r
ac
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i
l
i
t
y
as
a
n
al
t
er
nat
i
v
e
t
o
t
h
e
bar
c
ode
[
3
]
.
T
he
adv
ant
age
of
R
F
I
D
i
s
t
hat
i
t
does
n
ot
r
eq
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e
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t
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on
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s
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n R
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D
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s
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i
n F
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s
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em
T
he R
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o
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n d
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f
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ands
.
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he Lo
w
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f
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equenc
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LF
,
1
25
–
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34 k
H
z
)
and
hi
gh
-
f
r
equenc
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(
H
F
,
13.
56
MH
z
)
app
l
i
c
at
i
ons
ar
e
m
o
s
t
m
at
ur
ed
and
w
or
l
d
w
i
de
ac
c
ept
e
d.
T
hes
e
ap
pl
i
c
a
t
i
o
ns
ar
e b
as
ed o
n
m
agnet
i
c
f
i
el
d
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SSN
:
25
02
-
4
752
I
J
E
EC
S
V
o
l.
8
,
N
o.
1
,
O
c
t
o
ber
20
17
:
69
–
76
70
c
oupl
i
ng
be
t
w
ee
n t
he r
e
a
der
'
s
and
t
ag'
s
c
o
i
l
s
.
R
F
I
D
s
y
s
t
em
s
at
U
l
t
r
a
-
h
i
gh f
r
eque
nc
y
(
U
H
F
,
860
–
960
MH
z
)
and
m
i
c
r
o
w
av
e
(
2.
4
G
H
z
a
nd
5.
2
G
H
z
)
i
nv
ol
v
e
e
l
ec
t
r
om
agnet
i
c
c
ou
pl
i
n
g
bet
w
e
en
ant
e
nnas
and
es
t
abl
i
s
hi
ng a
c
om
m
uni
c
at
i
on
l
i
nk
at
l
ong
er
d
i
s
t
anc
e [
4]
.
A
na
l
o
gous
t
o
w
i
r
e
l
es
s
c
om
m
uni
c
at
i
on an
d per
s
ona
l
ar
ea net
w
or
k
t
ec
hnol
og
y
,
t
he
m
ul
t
i
-
s
t
andar
d c
apa
bi
l
i
t
y
,
hi
g
h
dat
a
per
f
or
m
anc
e,
s
ec
ur
i
t
y
pr
ot
oc
o
l
s
an
d c
om
pac
t
pr
of
i
l
e ar
e
bec
om
i
ng
ob
v
i
ous
ex
pec
t
at
i
ons
of
t
he
us
er
s
of
R
F
I
D
d
ev
i
c
es
[
5]
.
I
n
or
d
er
t
o
r
edu
c
e
t
he
o
v
er
a
l
l
s
i
z
e of
t
he han
dhe
l
d R
F
I
D
r
eader
s
,
t
he ne
ed t
o r
educ
e t
he s
i
z
e of
t
he ant
enna i
s
h
i
gh
l
y
es
s
ent
i
a
l
[
6
-
9]
.
B
ut
r
e
duc
i
n
g t
he
s
i
z
e of
ant
enn
a l
i
m
i
t
s
i
t
s
per
f
or
m
anc
es
.
Man
y
c
om
pac
t
pr
i
nt
e
d
m
onopol
e
a
nt
e
nnas
w
er
e
m
anuf
ac
t
ur
ed
f
or
dual
ban
d
app
l
i
c
at
i
ons
and r
epor
t
e
d i
n t
he
l
i
t
er
at
ur
e.
F
or
ex
am
pl
e t
he s
y
m
m
et
r
i
c
al
L
-
s
t
r
i
ps
and s
q
uar
e
-
s
lo
t
t
ec
hni
ques
w
er
e
pr
o
pos
ed
t
o
ac
hi
ev
e
m
ul
t
i
ba
nd
b
eh
a
v
i
or
[
10]
.
A
t
r
i
pl
e
-
ban
d
a
nt
e
nna
w
i
t
h
t
hr
ee
s
im
p
le
c
ir
c
u
la
r
-
ar
c
-
s
haped
s
t
r
i
ps
w
as
c
r
eat
e
d f
or
W
i
M
A
X
and
W
LA
N
appl
i
c
at
i
ons
[
11
]
.
T
he
w
hol
e
di
m
ens
i
ons
of
ant
en
nas
ar
e
l
ar
ge
t
hr
e
e
-
di
m
ens
i
on
al
s
i
z
e
i
n
[
1
2]
,
w
hi
c
h
p
o
s
s
i
bl
y
l
i
m
i
t
t
he
i
nt
e
gr
at
i
on
s
i
z
e
of
t
he
w
i
r
el
es
s
c
o
m
m
uni
c
at
i
on
de
v
i
c
e
s
and
i
m
pac
t
t
he
por
t
a
bl
e
c
har
ac
t
er
i
s
t
i
c
s
.
A
pr
i
n
t
ed d
i
p
ol
e [
13]
w
i
t
h e
t
c
hed r
ec
t
ang
l
e a
per
t
ur
es
on s
ur
f
ac
e has
r
epor
t
ed t
o h
av
e
dua
l
-
ba
nd
c
har
ac
t
er
i
s
t
i
c
s
;
but
i
t
s
uf
f
er
s
m
os
t
l
y
i
n
t
h
e c
o
ns
i
s
t
enc
y
of
t
he
r
ad
i
at
i
o
n p
at
t
er
ns
A
gai
n,
t
hes
e
ar
e
m
o
s
t
l
y
d
oub
l
e s
i
de
d p
l
an
ar
ant
e
nnas
.
I
n
t
hi
s
pap
er
,
w
e
pr
opos
e
a
new
d
es
i
g
n
of
a
c
o
m
pac
t
dua
l
-
ban
d
m
onopol
e
an
t
en
n
a
f
ed
b
y
a C
P
W
l
i
ne (
s
ee F
i
g
ur
e
2)
.
T
he pr
opos
ed an
t
en
na i
s
par
t
i
c
ul
ar
l
y
s
i
m
pl
e i
n
m
anuf
ac
t
ur
i
ng
o
w
i
n
g t
o i
t
s
s
i
ng
l
e d
i
e
l
e
c
t
r
i
c
and s
i
ngl
e m
et
al
l
a
y
e
r
.
I
n t
h
i
s
s
t
ud
y
,
s
e
v
er
al
des
i
gns
ar
e
i
n
v
es
t
i
gat
e
d
b
y
s
i
m
ul
at
i
o
n,
and
t
he
c
har
ac
t
er
i
s
t
i
c
s
of
t
he
r
et
ur
n
l
os
s
an
d
r
ad
i
at
i
o
n
pat
t
er
ns
ar
e
an
a
l
y
z
e
d an
d d
i
s
c
us
s
ed.
2.
A
n
t
en
n
a D
esi
g
n
F
i
gur
e
2 s
ho
w
s
t
he
geom
et
r
y
of
t
he
pr
opos
e
d a
nt
en
na.
F
i
gur
e 2.
G
e
om
et
r
y
of
t
h
e p
r
opos
ed
ant
enn
a
T
he dual
-
ban
d m
onopol
e a
nt
en
na c
ons
i
s
t
s
of
t
w
o m
on
opo
l
es
w
i
t
h d
i
f
f
er
ent
l
engt
h
s
.
T
he
l
on
ger
on
e (
i
.
e.
,
M
ono
po
l
e
1)
i
s
f
or
a l
o
w
er
f
r
eque
nc
y
band
w
hi
l
e
t
he s
h
or
t
er
on
e
(
i
.
e.
,
Mon
opo
l
e
2)
i
s
d
om
i
nant
at
t
he
hi
gh
er
f
r
equenc
y
.
T
he t
w
o
m
onopo
l
es
ar
e
c
om
bi
ne
d
a
t
t
hei
r
l
o
w
er
e
nds
and f
ed b
y
a C
P
W
f
ed l
i
ne.
B
y
f
ol
di
n
g t
he
l
on
ger
m
onop
ol
e,
r
es
ona
nc
e i
s
ac
h
i
e
v
ed at
m
uc
h
l
o
we
r
f
r
eque
nc
y
t
ha
n i
n t
h
e c
as
e of
a s
t
r
ai
ght
m
ono
pol
e of
t
he s
a
m
e hei
gh
t
.
B
y
w
i
d
en
i
ng t
he
w
i
dt
h
of
t
h
e
s
hor
t
er
m
onopo
l
e
w
i
t
h
a
c
i
r
c
ul
ar
s
ha
pe
w
e
m
a
k
e
i
m
pr
ov
i
ng
t
he
b
and
w
i
dt
h
per
f
or
m
anc
e of
t
he s
ec
ond
f
r
equenc
y
b
an
d.
A
5
0
-
C
P
W
t
r
ans
m
i
s
s
i
on
l
i
n
e,
ha
v
i
ng
a
s
t
r
i
p
c
ond
uc
t
or
of
w
i
dt
h
G
an
d
a
g
ap
of
di
s
t
anc
e
S
,
i
s
us
e
d t
o f
eed t
he
a
nt
enna
[
14
-
1
5]
.
I
n
t
he
des
i
g
n,
t
w
o
f
i
n
i
t
e gr
oun
d
pl
anes
w
i
t
h t
he
s
am
e
di
m
ens
i
ons
of
l
engt
h
Lg
an
d
w
i
dt
h
W
g ar
e s
y
m
m
et
r
i
c
al
l
y
o
n e
ac
h s
i
de
of
t
he
C
P
W
f
eed l
i
ne.
B
y
s
el
ec
t
i
ng a
pr
oper
l
e
ngt
h
of
t
he
gr
o
und
p
l
an
e,
i
t
i
s
f
oun
d t
h
at
t
he
f
i
r
s
t
t
w
o r
es
o
nan
t
m
odes
of
t
he
pr
opos
e
d an
t
en
na c
an
be
e
x
c
i
t
ed
w
i
t
h
goo
d i
nput
i
m
pedanc
e m
at
c
hi
ng
.
T
he
f
i
r
s
t
r
es
onanc
e
f
r
eque
nc
y
f
1
of
t
he
pr
i
nt
ed
m
ono
pol
e
ant
enn
a
dep
ends
o
n
t
he
t
ot
a
l
l
en
gt
h (
L2
+
L3
+
L4)
and i
t
i
s
c
hos
en t
o ha
v
e a f
r
equenc
y
b
and c
en
t
er
ed at
2
.
45 G
H
z
.
T
he
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
E
EC
S
IS
S
N
:
2
502
-
4
752
A
N
ew
C
o
mpac
t
C
P
W
-
F
ed D
ual
-
B
an
d Mono
po
l
e
A
nt
e
nna f
or
R
F
I
D
…
(
A
h
med
E
l
H
amr
ao
ui
)
71
s
ec
ond r
es
on
ant
f
r
equ
enc
y
f
2 depe
nds
on
t
he
t
ot
a
l
l
en
gt
h L
1 a
nd i
t
i
s
c
hos
e
n t
o
b
e c
ent
er
e
d at
5.
8 G
H
z
.
W
i
t
hout
t
he el
em
ent
of
l
en
gt
h (
L
2+
L3
+
L4)
,
t
he ant
enn
a i
s
f
ound t
o be r
es
onat
e on
l
y
at
one r
es
o
na
nt
f
r
eque
nc
y
c
l
o
s
e t
o f
2=
5.
8 G
H
z
,
w
her
eas
b
y
i
nc
l
ud
i
n
g t
h
i
s
e
l
em
ent
i
n t
he
r
ad
i
at
i
ng
m
onopol
e,
t
h
e f
i
r
s
t
r
es
onant
f
r
equenc
y
i
s
obt
ai
ned.
B
y
pr
o
per
l
y
t
un
i
n
g t
he d
i
m
ens
i
o
ns
of
t
he
ant
e
nna,
w
e c
a
n f
i
x
t
he
ant
enna
r
es
ona
nc
e at
2.
4
5 G
H
z
a
nd
5.
8 G
H
z
r
es
p
ec
t
i
v
e
l
y.
T
he l
engt
h of
eac
h
el
em
ent
i
s
pr
op
or
t
i
o
na
l
t
o
t
he
gu
i
de
d
w
a
v
e
l
en
gt
h
as
f
ol
l
o
w
s
:
re
k
k
e
λ
λ
0
g
i
.
.
=
L
=
W
he
r
e
i
s
t
he
w
a
v
e
l
en
gt
h
o
f
f
1
or
f
2
i
n
f
r
ee
s
pac
e,
i
s
t
he
ef
f
ec
t
i
v
e
di
e
l
ec
t
r
i
c
p
er
m
i
t
t
i
v
i
t
y
and
i
=
1,
2
.
F
r
o
m
t
he obt
ai
ned
r
es
ul
t
s
i
t
d
em
ons
t
r
at
ed
t
ha
t
t
h
e f
i
r
s
t
r
es
onant
pat
h h
as
a l
en
gt
h of
abou
t
27
m
m
(
L
2
+L
3
+L
4
)
or
about
0.
36
w
a
v
e
l
en
gt
h r
e
l
at
i
v
e t
o
t
h
e f
r
equenc
y
of
2.
45 G
H
z
,
a
nd
t
he l
e
ngt
h of
t
he s
ec
ond r
es
onan
t
pat
h i
s
4.
2 m
m
,
w
hi
c
h i
s
0.
13
w
a
v
e
l
en
gt
h
at
t
he r
es
on
an
t
f
r
equenc
y
of
5.
8 G
H
z
.
T
he f
i
nal
opt
i
m
i
z
ed
di
m
en
s
i
ons
of
t
h
e
ant
e
nn
a t
hr
ou
gh
E
M
s
i
m
ul
at
i
o
ns
ar
e
as
f
ol
l
o
w
:
gr
oun
d pl
an
e l
engt
h L
g=
13.
8 m
m
,
gr
ound
pl
a
ne
w
i
dt
h
W
g=
12.
9
m
m
,
f
eed
-
l
i
ne
w
i
dt
h
G
=
3.
8
mm
,
s
pac
i
ng b
et
w
e
en gr
o
und
pl
a
ne an
d f
eed l
en
gt
h
S
=
0.
5 m
m
.
T
ot
al
v
o
l
um
e of
t
he pr
opos
e
d
ant
e
nna
i
s
3
4x
30.
6x
1
.
6
m
m
3,
and
d
i
m
ens
i
ons
of
t
he
pr
opos
e
d
a
nt
e
nna
a
c
c
or
di
ng
t
o
t
h
e
F
i
gur
e
2 ar
e s
ho
w
n
i
n
T
abl
e 1.
T
abl
e 1.
D
i
m
ens
i
on of
t
h
e
P
r
opos
e
d A
nt
e
nna
(
un
i
t
i
n
m
m
)
P
ar
a
m
et
er
V
al
ue (
m
m
)
Ls
ub
34
W
su
b
30.
6
Lg
13.
8
Wg
12.
9
L1
4.
2
L2
14
L3
7
L4
3
F
1.
8
W
3
G
3.
8
S
0.
5
3
.
S
i
m
u
l
a
ti
o
n
R
e
s
u
l
ts
a
n
d
D
i
s
c
u
s
s
i
o
n
T
he ai
m
o
f
t
hi
s
s
t
ud
y
i
s
t
o
des
i
g
n a n
e
w
c
om
pac
t
ant
enna s
t
r
uc
t
ur
e f
or
dual
-
ban
d R
F
I
D
app
l
i
c
at
i
ons
.
T
he
des
i
g
n
ev
o
l
ut
i
o
n
of
t
he
pr
opos
ed
ant
enn
a
i
s
pr
es
ent
e
d
i
n
F
i
gur
e.
3
t
h
e
c
onc
ept
i
on
of
t
he pl
anar
ant
e
nna
w
i
t
h du
al
f
r
eque
nc
y
oper
a
t
i
on c
apa
bi
l
i
t
i
es
i
s
due t
o t
he
m
ul
t
i
pl
e
r
es
o
na
nc
es
i
nt
r
o
d
uc
ed
b
y
t
he
c
om
bi
nat
i
on
opt
i
m
i
z
a
t
i
on
of
t
h
e
ge
o
m
et
r
y
ant
enn
a,
l
en
gt
h
of
t
he t
w
o m
onopol
e
s
and C
P
W
-
f
eed l
i
ne
di
m
ens
i
ons
.
F
i
gur
e 3.
D
es
i
gn
e
v
ol
ut
i
on
of
t
he pr
op
os
ed
ant
enn
a
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SSN
:
25
02
-
4
752
I
J
E
EC
S
V
o
l.
8
,
N
o.
1
,
O
c
t
o
ber
20
17
:
69
–
76
72
T
he ai
m
o
f
t
hi
s
s
t
ud
y
i
s
t
o
des
i
g
n a n
e
w
c
om
pac
t
ant
enna s
t
r
uc
t
ur
e f
or
dual
-
ban
d R
F
I
D
app
l
i
c
at
i
ons
.
T
he
des
i
gn
ev
o
l
ut
i
o
n
of
t
h
e
pr
opos
e
d
ant
enn
a
i
s
pr
es
e
nt
ed
i
n
F
i
g
ur
e
3
t
he
c
onc
ept
i
on of
t
he pl
anar
ant
e
nna
w
i
t
h du
al
f
r
eque
nc
y
oper
a
t
i
on c
apa
bi
l
i
t
i
es
i
s
due t
o t
he
m
ul
t
i
pl
e
r
es
o
na
nc
es
i
nt
r
o
d
uc
ed
b
y
t
he
c
om
bi
nat
i
on
opt
i
m
i
z
a
t
i
on
of
t
h
e
ge
o
m
et
r
y
ant
enn
a,
l
en
gt
h
of
t
he t
w
o m
onopol
e
s
and C
P
W
-
f
eed l
i
ne
di
m
ens
i
ons
.
F
i
gur
e
4 s
ho
w
s
t
he
s
i
m
ul
at
ed
r
et
ur
n l
os
s
es
f
or
s
uc
c
e
s
s
i
v
e c
as
es
of
t
he
c
onc
ep
t
i
on of
t
he
f
i
n
al
dua
l
-
ba
nd
ant
enn
a.
F
r
om
F
i
gur
e
3,
w
e c
an
c
l
ear
l
y
s
e
e t
h
at
t
he
pr
op
os
ed a
nt
e
nna
i
s
des
i
g
ned t
hr
ou
gh t
hr
e
e s
t
e
ps
.
F
i
r
s
t
l
y
,
w
e s
t
ar
t
w
i
t
h
a s
t
r
ai
gh
t
r
ec
t
an
gul
ar
m
onopol
e (
F
i
g
ur
e
3.
D
-
1)
.
S
ec
o
nd
l
y
b
y
f
o
l
di
ng t
he
m
onopol
e t
he
di
m
ens
i
on
of
t
he a
nt
e
nna
w
as
r
ed
uc
ed (
F
i
g
ur
e
3.
D
-
2)
.
A
t
t
h
e en
d,
t
h
e f
i
na
l
du
al
-
band
ant
enn
a i
s
ac
h
i
e
v
e
d
b
y
i
ns
er
t
i
ng
a s
ec
ond m
onopo
l
e (
F
i
g
ur
e
3.
D
-
3)
.
T
hus
,
t
he m
at
c
hi
ng i
n
put
i
m
peda
nc
e of
t
he f
i
nal
a
nt
e
nna s
t
r
uc
t
ur
e i
s
ac
hi
e
v
e
d
r
es
pec
t
i
v
el
y
i
n
f
r
equenc
y
bands
-
2.
45G
H
z
an
d
5.
8G
H
z
w
i
t
h
a
r
et
ur
n
l
os
s
l
es
s
t
ha
n
-
1
0 dB
.
F
i
gur
e
4 s
ho
w
s
t
he s
i
m
ul
at
ed r
et
ur
n l
os
s
f
or
eac
h des
i
gn.
T
o s
t
ud
y
t
he
i
nf
l
u
enc
e
of
di
f
f
er
ent
par
am
et
er
s
of
t
he
pr
opos
ed
ant
enn
a
w
h
i
c
h af
f
ec
t
t
he
dua
l
-
ban
d p
er
f
or
m
anc
es
,
C
S
T
s
i
m
ul
at
i
o
n s
of
t
w
ar
e h
as
bee
n ap
pl
i
ed
t
o
gu
i
de
t
hi
s
des
i
g
n [
1
6]
.
F
i
gur
e
5 s
h
o
w
s
t
he s
i
m
ul
at
ed r
ef
l
ec
t
i
on c
oef
f
i
c
i
ent
of
t
he ant
e
nna as
a f
unc
t
i
on of
f
r
equenc
y
f
or
t
he
di
f
f
er
ent
v
a
l
ues
of
t
he
l
engt
h
of
t
he
f
i
r
s
t
m
onopol
e
L
2
w
hi
l
e
ot
h
er
par
am
et
er
s
ar
e f
i
x
ed.
T
he c
ent
er
f
r
equenc
y
of
t
he f
i
r
s
t
ban
d dec
r
e
as
es
w
i
t
h t
he i
nc
r
eas
e of
L
2
,
w
her
e
as
t
he
s
ec
ond b
and r
em
ai
ns
c
ons
t
ant
.
F
i
gur
e 4.
T
he r
et
ur
n l
os
s
v
s
f
r
equenc
y
of
t
he
pr
op
os
ed
ant
enn
a f
or
di
f
f
er
ent
ca
se
s
on C
S
T
F
i
gur
e 5.
S
i
m
ul
at
e
d r
ef
l
ec
t
i
on
c
oef
f
i
c
i
ent
of
t
he pr
op
os
ed
dua
l
b
and
ant
e
nna w
i
t
h
v
ar
i
ed (
L
2
)
w
hi
l
e ot
h
er
par
a
m
et
er
s
f
i
x
ed
F
i
gur
e
6,
i
l
l
us
t
r
at
es
t
he
s
i
m
ul
at
ed
r
ef
l
ec
t
i
on
c
oef
f
i
c
i
e
nt
c
ur
v
es
w
i
t
h
v
ar
i
ed
l
e
ngt
h
of
t
he
s
ec
ond
m
onopol
e
L
1
.
A
s
c
an
be
s
e
en
f
r
om
F
i
gur
e
5,
t
he
c
ent
er
f
r
equenc
y
of
t
he
s
ec
ond
ba
nd
d
ec
r
eas
es
w
i
t
h t
he
i
nc
r
eas
e of
L
1
.
F
i
gur
e
7
s
h
o
w
s
t
he s
i
m
ul
at
ed r
ef
l
ec
t
i
on c
oef
f
i
c
i
ent
of
t
he ant
e
nna as
a f
unc
t
i
on of
f
r
equenc
y
f
or
t
he di
f
f
er
ent
v
al
u
es
of
Lg w
h
i
l
e
ot
her
p
ar
am
et
er
s
ar
e
f
i
x
ed.
I
t
c
an be
s
een f
r
o
m
t
he
F
i
gur
e
7
t
h
at
t
he
l
en
gt
h
of
Lg
per
m
i
t
s
t
o
obt
ai
n
a
goo
d
i
m
pedanc
e
m
at
c
hi
ng
at
bot
h
o
per
at
i
ng
f
r
equenc
i
es
.
F
i
gur
e 6.
S
i
m
ul
at
e
d r
ef
l
ec
t
i
on c
oef
f
i
c
i
ent
of
t
he
pr
opos
e
d du
al
ban
d a
nt
e
nn
a
w
i
t
h
v
ar
i
ed (
L
1
)
w
hi
l
e o
t
her
par
am
et
er
s
f
i
x
ed
F
i
gur
e 7.
S
i
m
ul
at
e
d r
ef
l
ec
t
i
on c
oef
f
i
c
i
ent
of
t
he
pr
opos
e
d du
al
ban
d a
nt
e
nn
a
w
i
t
h
v
ar
i
ed (
L
g)
w
hi
l
e o
t
her
par
am
et
er
s
f
i
x
ed
Evaluation Warning : The document was created with Spire.PDF for Python.
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J
E
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S
IS
S
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:
2
502
-
4
752
A
N
ew
C
o
mpac
t
C
P
W
-
F
ed D
ual
-
B
an
d Mono
po
l
e
A
nt
e
nna f
or
R
F
I
D
…
(
A
h
med
E
l
H
amr
ao
ui
)
73
I
n or
d
er
t
o
c
om
par
e t
he
r
es
ul
t
s
i
n F
i
gur
e
3,
e
l
ec
t
r
om
agnet
i
c
s
ol
v
er
A
D
S
s
o
f
t
w
ar
e
"
A
dv
anc
ed
D
es
i
g
n
S
y
s
t
em
"
[
17]
i
s
us
ed.
F
i
gur
e
8
s
ho
w
s
a
c
om
par
i
s
on
of
t
he
s
i
m
ul
at
ed
r
et
ur
n
l
os
s
v
er
s
us
f
r
eque
nc
y
f
or
t
h
e pr
op
os
ed
ant
e
nna
us
i
n
g
C
S
T
and
A
D
S
.
F
i
gur
e 8.
C
om
par
i
s
on of
s
i
m
ul
at
ed r
et
ur
n
l
os
s
S
11 f
or
t
he
pr
opos
e
d d
ual
-
ban
d an
t
enn
a us
i
ng
C
S
T
and
A
D
S
W
e
c
an obs
er
v
e a
d
i
f
f
er
e
nc
e i
n r
et
ur
n
l
os
s
obt
ai
ne
d
w
i
t
h C
S
T
and
A
D
S
du
e
t
o t
he
t
ec
hni
que
of
c
al
c
u
l
at
i
o
n
us
ed
i
n
eac
h
s
i
m
ul
at
i
on s
of
t
w
ar
e.
C
S
T
i
s
3D
E
M s
i
m
ul
at
or
bas
e
d u
po
n
F
i
ni
t
e I
nt
e
gr
at
i
on T
ec
hn
i
qu
e (
F
I
T
)
w
h
i
l
e
A
D
S
i
s
2D
E
M s
i
m
ul
at
or
b
as
ed
upo
n
t
he
Met
hod
of
Mom
ent
(
MoM)
.
F
or
a
r
ef
l
ec
t
i
on
c
oef
f
i
c
i
ent
l
es
s
t
han
-
1
0
d
B
,
w
e
c
an
d
educ
e
t
hat
t
he
ant
enn
a
o
p
er
at
es
i
n t
w
o f
r
equenc
y
ban
ds
(
2.
35
–
2
.
74 G
H
z
)
a
nd (
5.
2
–
6.
5
G
H
z
)
.
T
he
m
ax
i
m
u
m
r
ef
l
ec
t
i
on c
oef
f
i
c
i
en
t
of
-
14.
5dB
a
nd
-
26.
7d
B
i
s
obt
ai
ne
d at
t
he r
es
o
nant
f
r
equenc
i
es
of
2.
45 G
H
z
and 5.
8 G
H
z
r
es
pec
t
i
v
el
y
.
T
he 2D
r
ad
i
at
i
on pat
t
er
n i
s
g
i
v
en b
y
F
i
g
ur
e
9 i
n t
h
e E
-
p
l
an
e,
w
h
i
c
h s
ho
w
s
a s
t
abl
e
and bi
-
d
i
r
ec
t
i
o
na
l
r
ad
i
at
i
o
n
pat
t
er
n
f
or
t
he t
w
o r
es
on
ant
f
r
equenc
y
ban
ds
.
T
he 2D
r
adi
a
t
i
on pat
t
er
n
i
s
gi
v
en b
y
F
i
g
ur
e
1
0 i
n t
h
e H
-
pl
an
e.
(
a)
(
b)
F
i
gur
e 9.
2
D
r
ad
i
at
i
on
pat
t
e
r
n i
n
E
-
pl
an
e f
or
t
he d
es
i
g
n
ed s
t
r
uc
t
ur
e
at
r
es
on
ant
f
r
e
quenc
y
,
f
or
(
a)
2.
45 G
H
z
and (
b)
5.
8 G
H
z
(
a)
(
b)
F
i
gur
e 10.
2D
r
a
di
a
t
i
o
n p
at
t
er
n i
n
H
–
pl
a
ne
f
or
t
he
des
i
gned
s
t
r
uc
t
ur
e at
r
es
ona
nt
f
r
eque
nc
y
,
f
or
(
a)
2.
45 G
H
z
and (
b)
5.
8 G
H
z
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SSN
:
25
02
-
4
752
I
J
E
EC
S
V
o
l.
8
,
N
o.
1
,
O
c
t
o
ber
20
17
:
69
–
76
74
I
n or
der
t
o c
om
pl
et
e t
he
s
t
ud
y
of
t
he pr
o
pos
ed a
n
t
enn
a a c
al
c
ul
at
i
on of
t
he
gai
n
v
ar
i
at
i
on
ov
er
t
he
oper
a
t
i
n
g
f
r
equenc
y
ban
d
i
s
per
f
or
m
ed
t
hr
ough
t
h
e
F
ar
F
i
e
l
d
b
y
us
i
n
g
C
ST
-
M
W
at
2.
45
G
H
z
and
5.
8
G
H
z
.
T
he
gr
ap
h
r
es
ul
t
i
n
F
i
gur
e
11
s
h
o
w
s
t
h
at
t
he
pr
o
pos
ed
a
nt
e
nna
pr
ov
i
des
a pe
ak
gai
n
at
2.
4
5 G
H
z
ar
oun
d 1.
36
dB
and
a pe
ak
gai
n a
t
5.
8 G
H
z
ar
o
und
2.
3
dB
.
F
i
gur
e 11.
S
i
m
ul
at
ed a
nt
e
n
na g
ai
n
v
s
f
r
eque
nc
y
4.
M
easu
r
em
en
t
R
esu
l
t
s
an
d
D
i
scu
ssi
o
n
A
f
t
er
t
he c
onc
ept
i
on a
nd o
pt
i
m
i
z
at
i
on of
t
he du
al
-
b
an
d ant
e
nna b
y
us
i
n
g A
D
S
an
d C
S
T
,
t
he
pr
ot
ot
y
p
e
of
t
he
i
n
v
es
t
i
gat
e
d
an
t
en
na
w
as
f
abr
i
c
at
ed
o
n
F
R
4
s
u
bs
t
r
at
e
us
i
n
g
t
he
C
hem
i
c
al
et
c
hi
n
g
m
ac
hi
ne,
t
h
en
m
eas
ur
ed t
o
v
er
i
f
y
t
he
per
f
or
m
anc
e
of
t
he
r
es
ul
t
s
obt
a
i
ne
d f
r
o
m
s
i
m
ul
at
i
on.
T
he phot
ogr
a
ph
of
t
he f
abr
i
c
at
e
d m
ono
po
l
e
ant
e
nna
i
s
g
i
v
en
i
n F
i
gur
e
12.
F
i
gur
e 12.
P
h
ot
o
gr
aph
of
t
h
e
f
abr
i
c
at
ed
s
t
r
uc
t
ur
e
T
he
r
et
ur
n
l
os
s
w
as
m
eas
ur
ed
b
y
us
i
ng
V
ec
t
or
i
al
N
et
w
or
k
A
nal
y
z
er
(
V
N
A
)
P
N
A
-
X
f
r
om
A
gi
l
e
nt
T
ec
hnol
o
gi
es
.
T
h
e k
i
t
of
c
al
i
br
at
i
on us
e
d
i
s
3.
5 m
m
f
r
o
m
A
gi
l
ent
T
ec
hnol
ogi
es
c
o
m
pos
ed f
r
om
O
pen,
S
h
o
r
t
and
Lo
ad c
om
pone
nt
s
;
l
o
s
s
es
i
n t
h
e
di
f
f
er
ent
t
r
ans
i
t
i
ons
ar
e
t
ak
en
in
t
o
ac
c
ount
(
F
i
gur
e
13)
.
F
i
gur
e 13.
C
al
i
br
a
t
i
o
n K
i
t
3.
5
m
m
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
E
EC
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IS
S
N
:
2
502
-
4
752
A
N
ew
C
o
mpac
t
C
P
W
-
F
ed D
ual
-
B
an
d Mono
po
l
e
A
nt
e
nna f
or
R
F
I
D
…
(
A
h
med
E
l
H
amr
ao
ui
)
75
A
f
t
er
t
he
c
al
i
br
at
i
o
n,
t
he r
e
t
ur
n l
os
s
f
or
t
he
ac
hi
ev
ed
a
nt
en
na
as
s
ho
w
n
i
n t
he F
i
g
ur
e
1
4
i
s
t
es
t
e
d.
I
n t
he
s
am
e t
i
m
e,
bot
h
t
h
e s
i
m
ul
at
i
ons
on
A
D
S
a
nd
C
S
T
w
i
t
h m
eas
ur
em
ent
r
es
u
l
t
s
ar
e
c
o
m
par
ed.
F
i
gur
e 14.
C
om
par
i
s
on of
s
i
m
ul
at
ed
and m
eas
ur
ed r
et
ur
n l
os
s
S
m
al
l
di
s
c
r
ep
anc
i
es
bet
w
e
en t
h
e m
eas
ur
ed an
d s
i
m
ul
at
ed r
es
ul
t
s
ar
e obs
er
v
e
d,
due t
o
c
abl
e
ef
f
ec
t
s
,
S
MA
c
on
nec
t
or
and f
abr
i
c
at
i
on
i
m
per
f
ec
t
i
on.
T
he
s
i
m
ul
at
e
d
i
m
pedanc
e
band
w
i
d
t
h
(
f
or
r
et
ur
n
l
os
s
l
es
s
t
han
210
d
B
)
i
s
r
eac
h
i
ng
50
0
MH
z
(
2.
1
–
2.
6 G
H
z
)
a
nd
80
0 MH
z
(
5.
2
–
6G
H
z
)
,
s
i
m
ul
t
a
neous
l
y
.
T
he r
adi
at
i
on
pat
t
er
ns
w
er
e
m
eas
ur
ed i
n a
nec
ho
i
c
c
ha
m
ber
as
s
how
n
i
n F
i
gur
e
1
5.
(a
)
(
F
1=
2.
45G
H
z
)
(b
)
(
F
2=
5.
8G
H
z
)
F
i
gur
e 16.
Me
as
ur
ed r
a
di
a
t
i
on p
at
t
er
n
at
2
.
45G
H
z
and
5.
8G
H
z
i
n t
h
e
E
-
pl
an
e
(a
)
(
F
1=
2.
45G
H
z
)
(b
)
(
F
2=
5.
8G
H
z
)
F
i
gur
e 17.
Me
as
ur
ed r
a
di
a
t
i
on p
at
t
er
n
at
2
.
45G
H
z
and
5.
8G
H
z
i
n t
h
e H
-
pl
a
ne
T
he pr
opos
ed
ant
e
nna
ha
s
an ac
c
ept
a
bl
e qu
as
i
om
ni
d
i
r
ec
t
i
ona
l
an
d s
t
ab
l
e r
a
di
at
i
o
n
pat
t
er
n
r
equ
i
r
ed
t
o r
ec
e
i
v
e
i
nf
or
m
at
i
on
s
ig
n
a
l.
T
he f
ol
l
o
w
i
ng t
ab
l
e s
um
s
up t
h
e a
dv
ant
ages
of
t
h
e
pr
opos
e
d a
nt
en
na c
om
pa
r
ed t
o
ot
her
ant
e
nnas
pr
op
os
ed
i
n
t
he
l
i
t
er
at
ur
e.
I
t
c
an
be
s
ee
n
t
h
at
t
he
pr
opos
ed
a
nt
e
nna
i
s
s
i
gni
f
i
c
an
t
l
y
s
m
al
l
er
,
of
f
er
s
an i
m
por
t
ant
band
w
i
dt
h and a g
ood
gai
n c
o
m
par
ed t
o i
t
s
di
m
ens
i
ons
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SSN
:
25
02
-
4
752
I
J
E
EC
S
V
o
l.
8
,
N
o.
1
,
O
c
t
o
ber
20
17
:
69
–
76
76
5
.
C
o
n
c
l
u
s
i
o
n
I
n
t
hi
s
s
t
ud
y
,
w
e
h
av
e
per
f
or
m
ed
t
he
des
i
gn
a
nd
t
he
s
i
m
ul
at
i
on
of
a
ne
w
l
o
w
c
o
s
t
dual
band
m
onopo
l
e
a
nt
en
na
w
i
t
h
a
50
O
hm
C
P
W
F
ed.
T
h
i
s
v
al
i
d
at
e
d
ant
e
nna
i
s
s
ui
t
abl
e
f
or
R
F
I
D
app
l
i
c
at
i
ons
w
hi
c
h
c
an
be
us
ed
i
n t
he r
e
l
e
as
ed f
r
equ
enc
y
ban
d 2.
45 G
H
z
and
5.
8 G
H
z
.
T
he
good
agr
e
em
ent
bet
w
een
s
i
m
ul
at
i
o
n an
d m
eas
ur
em
en
t
r
es
ul
t
s
v
a
l
i
d
at
e
t
h
i
s
ant
en
na t
o
be
us
e
d
f
or
c
o
m
pac
t
R
F
I
D
han
dhe
l
d
r
eader
f
or
d
u
al
-
b
and op
er
a
t
i
on
.
A
c
k
n
o
w
l
e
d
g
e
m
e
n
t
W
e
t
han
k
Mr
.
Moham
ed LA
T
R
A
C
H
P
r
of
es
s
or
i
n E
S
E
O
,
E
ng
i
ne
er
i
n
g I
ns
t
i
t
u
t
e i
n
A
nger
s
,
F
r
anc
e f
or
al
l
o
w
i
ng
us
t
o us
e al
l
t
he
i
ns
t
r
um
ent
s
and s
o
l
v
er
s
av
a
i
l
ab
l
e
i
n
hi
s
l
ab
or
a
t
or
y
.
R
ef
er
en
ces
[1
]
F
i
nk
enz
el
l
er
K
.
R
F
I
D
H
andbo
ok
:
F
un
dam
ent
a
l
s
an
d A
ppl
i
c
at
i
on
s
i
n C
ont
a
c
t
l
es
s
S
m
ar
t
C
ar
ds
and
I
dent
i
f
i
c
at
i
on,
3r
d E
d
i
t
i
o
n,
J
oh
n
W
i
l
ey
and S
ons
I
nc
,
N
ew
Y
o
r
k
,
20
10.
[2
]
K
ons
t
a
nt
i
nos
D
om
d
ouz
i
s
,
B
i
m
al
K
um
ar
,
C
h
im
a
y
A
n
um
ba
.
R
adi
o
-
F
r
eq
uen
c
y
I
den
t
i
f
i
c
at
i
on (
R
F
I
D
)
appl
i
c
at
i
on
s:
A
br
i
ef
i
nt
r
odu
c
t
i
o
n
.
2006 E
l
s
ev
i
er
Lt
d.
A
dv
an
c
e
d E
ngi
n
eer
i
n
g I
nf
or
m
at
i
c
s
21
.
2007
:
35
0
–
355.
[3
]
C
hen Y
N
,
F
an
g
F
,
Di
n
g D
H
,
Z
hu X
H
,
Y
ang Y
K
.
O
r
gani
c
R
F
I
D
B
as
e
d on
T
r
ac
ea
bi
l
i
ty
S
y
s
te
m
o
f R
i
c
e
S
uppl
y
C
ha
i
n
.
T
E
LK
O
M
N
I
K
A
I
ndone
s
i
an J
our
n
al
o
f
E
l
e
c
t
r
i
c
al
E
ng
i
n
eer
i
ng
.
2
014;
12(
5
)
:
37
6
9
-
3776
.
[4
]
D
om
i
n
i
que P
ar
et
,
R
f
i
d E
n U
l
t
r
a E
t
S
uper
H
au
t
es
F
r
équ
en
c
es
U
hf
-
Sh
f
,
T
héor
i
e et
m
i
s
e
en oeuv
r
e,
D
unod,
2008
.
[5
]
M
N
as
er
,
I
A
l
dm
our
,
R
B
u
di
ar
t
o,
P
P
e
ri
s
-
Lopez
.
S
LR
V
:
A
n R
F
I
D
M
ut
ual
A
ut
h
ent
i
c
at
i
on P
r
ot
o
c
o
l
C
onf
or
m
i
ng
t
o E
P
C
G
en
er
at
i
o
n
-
2 S
t
an
dar
d
.
T
EL
KO
M
N
I
KA
.
2015
;
13(
3)
:
10
54
-
10
61.
[6
]
F
os
t
er
P
,
R
Bu
e
b
e
rry
.
A
nt
en
n
a pr
ob
l
em
s
i
n R
F
I
D
s
y
s
t
em
s
.
I
E
E
C
ol
l
.
on R
F
I
D
T
e
c
h
nol
o
gy
.
3
/1
–
3
/5
,
1999.
[7
]
C
G
ues
m
i
,
A
F
er
c
h
i
c
hi
,
A
G
h
a
r
s
al
l
ah
.
A
M
odi
f
i
ed F
r
a
c
t
a
l
B
ow
T
i
e A
nt
enna f
or
an R
F
I
D
R
eader
.
I
nt
er
na
t
i
o
nal
J
our
nal
of
E
l
ec
t
r
i
c
al
and C
om
p
ut
er
E
n
gi
n
eer
i
ng
(
I
J
E
C
E
)
.
2
014;
4
(
3
):
441
-
446.
[8
]
H
at
t
an F
A
bu
t
ar
b
ous
h,
H
N
a
s
i
f, R
N
i
l
av
al
an
,
S
W
C
heu
ng
.
M
ul
t
i
band
and W
i
d
eb
an
d
M
o
nopol
e
A
nt
enn
a f
or
G
S
M
900 and O
t
her
W
i
r
el
es
s
A
ppl
i
c
at
i
on
s
.
I
E
E
E
A
nt
enna
s
a
nd
W
i
r
e
l
e
s
s
P
r
opaga
t
i
on
Let
t
er
s
.
2
012
; 1
1
.
[9
]
P
M
i
huł
ow
i
c
z
,
D
K
aw
al
ec
,
M
W
ę
gl
ar
s
k
i
.
T
he I
dea
of
E
nh
anc
i
ng D
i
r
e
c
t
i
ona
l
E
ner
gy
R
a
di
at
i
on by
a
P
has
e
d
A
nt
enn
a
A
r
r
ay
i
n
U
H
F
RF
I
D
S
y
s
t
e
m
.
I
nt
l
J
o
ur
nal
o
f
E
l
ec
t
r
oni
c
s
a
n
d
T
el
e
c
om
m
uni
c
at
i
o
ns
.
2016
;
62
(
2
):
1
15
-
120
.
[1
0
]
Z
hai
H
,
Ma
Z
,
Ha
n
Y
,
Li
ang
C
.
A
c
om
p
ac
t
pr
i
nt
ed
ant
enn
a f
or
t
r
i
p
l
e
-
b
and
W
L
A
N
/
W
i
M
A
X
appl
i
c
at
i
on
s
.
I
E
E
E
A
nt
en
nas
W
i
r
e
l
.
P
r
o
pag.
Let
t
.
201
3
:
65
–
68.
[1
1
]
Pe
i
J
,
W
an
g
A
G
,
G
a
o
S
,
L
eng
W
.
M
i
ni
at
ur
i
z
ed t
r
i
pl
e
-
ban
d ant
en
na w
i
t
h a def
e
c
t
e
d gr
ou
nd pl
a
ne f
o
r
W
L
A
N
/
W
i
M
A
X
appl
i
c
at
i
ons
.
I
E
E
E
A
nt
enn
as
W
i
r
e
l
.
P
r
op
ag.
L
et
t
.
20
11
:
298
-
301.
[1
2
]
H
uang
C
Y
,
Yu
E
Z
A
.
S
l
ot
-
m
on
opol
e
ant
e
nna
f
or
d
ua
l
-
b
and W
L
A
N
appl
i
c
at
i
o
ns
.
I
EEE
A
n
t
enna
s
W
i
r
e
l
.
P
r
opag.
Let
t
.
20
11
;
10
:
50
0
-
50
2.
[1
3
]
Q
Q
He
,
B
Z
W
ang
,
J
He
.
W
i
deba
nd an
d D
ual
-
B
and D
e
s
i
gn of
a P
r
i
n
t
ed D
i
pol
e A
nt
e
nna
.
I
EEE
A
nt
enn
as
and W
i
r
el
es
s
P
r
op
a
g.
Let
t
.
20
08;
7
:
1
-
4
.
[1
4
]
A
B
al
an
i
s
,
A
nt
en
na T
heor
y
A
n
al
y
s
i
s
and
D
es
i
gn,
2nd
edi
t
i
on
(
J
ohn
W
i
l
ey
&
S
on
s
,
I
n
c
.
,
200
3)
.
[1
5
]
S
i
m
o
ns
R
N
.
C
op
l
an
ar
W
a
v
eg
u
i
de
C
i
r
c
ui
t
s
,
C
o
m
p
onen
t
s
and S
y
s
t
em
s
.
W
ile
y
-
I
nt
er
s
c
i
en
c
e,
2001.
[1
6
]
C
S
T
S
t
udi
o S
ui
t
e v
er
s
i
on 2
01
0 :
ht
t
p:
/
/
w
w
w
.
c
s
t
.
c
om
/
C
ont
e
nt
/
P
r
odu
c
t
s
/
D
S
/
O
v
er
v
i
ew
.
as
px
[1
7
]
A
dv
anc
ed
D
es
i
gn S
y
s
t
em
(
A
D
S
)
: h
ttp
:
//w
w
w
.h
o
m
e
.a
g
i
l
e
n
t.
c
o
m
/a
g
i
l
e
n
t/h
o
m
e
.
j
s
p
.
[1
8
]
Y
S
eo,
J
J
ung,
H
Lee,
Y
Li
m
.
M
odi
f
i
ed D
ual
M
onopol
e A
nt
enna
f
or
W
l
a
n
O
per
at
i
on
.
Mi
c
r
o
w
a
v
e
a
nd
O
pt
i
c
a
l
T
e
c
hn
ol
og
y
L
et
t
er
s
.
200
0
;
53
(
12)
.
[1
9
]
J
W
en W
u,
Y
D
e
r
W
ang
,
H
M
i
ng
H
s
i
ao,
J
H
an Lu
.
T
-
S
h
aped
M
onopol
e
A
nt
en
na
w
i
t
h
S
hor
t
e
d
L
-
S
haped S
t
r
i
p
-
S
l
eev
es
f
o
r
W
lan
2.
4/
5.
8
-
G
H
z
O
per
at
i
on
.
M
i
c
r
ow
av
e
a
nd O
pt
i
c
al
T
ec
h
nol
o
gy
Let
t
er
s
.
2005
;
46(
1
).
[2
0
]
H
M
i
ng H
s
i
ao,
J
H
an
Lu,
J
W
en W
u
.
Y
-
SH
APED
M
onopol
e
A
nt
en
na
w
i
t
h D
u
al
-
B
r
o
adba
n
d O
per
at
i
on
f
o
r
W
lan
.
M
i
c
r
ow
av
e
a
n
d O
pt
i
c
al
T
e
c
hn
ol
o
gy
L
et
t
er
s
.
2
006
;
4
8
(8
).
[2
1
]
T
y
ang,
G
w
en,
G
j
i
ns
ong
,
F
x
i
aoguo
.
C
om
p
ac
t
m
ul
t
i
-
ba
nd pr
i
n
t
ed a
nt
en
na w
i
t
h m
ul
t
i
-
t
r
i
an
gul
ar
gr
ound
pl
a
ne
f
or
W
L
A
N
/
W
i
M
A
X
/
R
F
I
D
appl
i
c
a
t
i
o
ns
.
I
nt
er
n
at
i
ona
l
J
o
ur
na
l
of
M
i
c
r
ow
av
e an
d
W
i
r
e
l
es
s
T
ec
h
nol
o
gi
e
s
.
C
a
m
br
i
dge U
ni
v
er
s
i
t
y
P
r
es
s
an
d t
h
e E
ur
o
pea
n M
i
c
r
ow
av
e A
s
s
oc
i
at
i
o
n
.
2
014
.
[2
2
]
M
Ih
a
m
j
i
, E
l
h
A
bd
el
m
oun
i
m
,
H
B
enni
s
,
M
H
ef
naw
i
,
M
Lat
r
ac
h
.
D
es
i
gn o
f
C
om
pac
t
T
r
i
-
B
and F
r
a
c
t
al
A
nt
enn
a f
or
R
F
I
D
R
e
ader
s
.
I
nt
er
nat
i
on
al
J
our
n
al
o
f
E
l
e
c
t
r
i
c
al
and C
om
pu
t
er
E
ng
i
ne
er
i
n
g (
I
J
E
C
E
)
.
2017
;
7(
4)
.
Evaluation Warning : The document was created with Spire.PDF for Python.