Internati
o
nal
Journal of Ele
c
trical
and Computer
Engineering
(IJE
CE)
Vol.
5, No. 6, Decem
ber
2015, pp. 1433~
1
440
I
S
SN
: 208
8-8
7
0
8
1
433
Jo
urn
a
l
h
o
me
pa
ge
: h
ttp
://iaesjo
u
r
na
l.com/
o
n
lin
e/ind
e
x.ph
p
/
IJECE
Compact Integrated Bluetooth UWB Antenna with Quadruple
Bandnotched Characteristics
Rekh
a
L
a
b
a
d
e
*, Sh
ank
a
r D
e
os
ark
a
r*
*,
N
a
ra
y
a
n Pi
shar
ot
y
*
*
*
*
,
*** Centr
e
for
Radio Science S
t
udies, S
y
mbiosisInt
ernational U
n
iversity
, La
vale, Pune 412115, I
ndia
*** Babasah
e
b
Ambedkar Tech
nologica
l Institutes, Lon
e
re, Ind
i
a
Article Info
A
B
STRAC
T
Article histo
r
y:
Received Apr 21, 2015
Rev
i
sed
Ju
l 21
,
20
15
Accepte
d Aug 5, 2015
In this paper,
a compact printed
dua
l band antenna for Bluetoo
t
h and UWB
applications with Wi-MAX (
3
.3-3
.7GHz),
C-band satellite downlink
(3.
7
GHz-4.
2
GHz),
WLAN (5.
1
5-5.
825GHz) an
d DSRC (5.50-5.925GHz)
band notched
characteristics is proposed
and in
vestigated. B
y
etching two
half wavelength
L-shaped slots in th
e radiatin
g patch and an
inverted U-
shaped slot in
the microstrip
feed lin
e the quadruple band notched
chara
c
t
e
ris
t
i
c
s
a
r
e obta
i
ned
.
Further, b
y
embedding quarter
waveleng
th
parasitic str
i
p at the
two edg
e
s
of U-
shaped rad
i
ating
patch
the dual b
a
nd
characteristic with desi
r
e
d band
width is obtain
e
d. Th
e proposed
antenna
is
designed
and f
a
bricated
on
a FR4 s
ubstrate with d
i
mensions of 24
×
35mm
2
that operates over a 2.4
to 11GHz with S11
≤
-10dB
excep
t over
notch bands of
3.3-3.7GHz, 3
.
7
-
4.
2GHz, 5.15
to 5.625 GHz and 5.625-6
GHz. Dire
ction
a
l pat
t
ern
in
E-pl
ane
and n
earl
y
o
m
nidirect
ional
p
a
tt
ern in
H-
plane
are obser
ved over a U
W
B band except at desired b
a
nd-notch
ed
frequencies. Les
s
variations in
gr
oup delay
an
d pulse d
e
formation shows
good time domain ch
aracteristics. In
addi
tion,
the structure ex
hibits stab
le
gain
ov
er the des
i
red
b
a
nd.
Keyword:
B
l
uet
oot
h
Dual
ba
nd
Qua
d
ru
pl
e ban
d
not
c
h
Tim
e
dom
ain analysis
Ultrawi
d
eba
nd (UWB
)
Copyright ©
201
5 Institut
e
o
f
Ad
vanced
Engin
eer
ing and S
c
i
e
nce.
All rights re
se
rve
d
.
Co
rresp
ond
i
ng
Autho
r
:
R
e
kha
Laba
de
,
Depa
rtem
ent of Electronics
a
n
d
Tel
ecom
m
uncat
i
o
n
E
ngi
ne
eri
n
g,
Sym
b
i
o
si
s I
n
st
i
t
u
t
e
of
Tec
h
n
o
l
ogy
,
I
ndi
a
Em
a
il: rp
lab
a
de@g
m
a
il.co
m
1.
INTRODUCTION
Since
2002, aft
e
r the
declaration
of
un
licen
sed
fr
ee fr
eq
u
e
ncy b
a
nd
o
f
7
.
5G
H
z
(3
.1
GH
z
~1
0.6G
Hz)
fo
r ul
t
r
a
w
i
d
e
b
and
(
U
W
B
) c
o
m
m
uni
cat
i
on by
Fe
deral
C
o
m
m
uni
cat
i
on C
o
m
m
i
ssi
on
(FC
C
)
[1]
,
t
h
e
U
W
B
antenna
beca
me
m
o
re popular.
UW
B
antennas a
r
e m
o
st widely use
d
in
UW
B sy
ste
m
s because
of its
attractive features s
u
c
h
as light wei
ght, s
m
all s
i
ze,
l
o
w
pr
ofi
l
e
, l
o
w cost
an
d hi
gh
er dat
a
rat
e
.
Vari
ou
s
appl
i
cat
i
o
ns o
f
U
W
B
ant
e
n
n
a suc
h
as im
agi
n
g, rem
o
t
e
sensi
n
g, l
o
ca
t
i
on t
r
acki
n
g
,
sens
or net
w
o
r
ks an
d
m
e
di
cal
at
t
r
acted i
n
du
st
ry
pe
opl
e a
nd
resea
r
che
r
s t
o
war
d
s
desi
g
n
of
U
W
B
ant
e
nna
.
Num
e
ro
us de
s
i
gns
of
UW
B an
tenn
a h
a
v
e
b
e
en
r
e
p
o
r
t
ed
in
[2
]-[5
].
Ho
w
e
v
e
r
the ex
istin
g
n
a
rr
ow
band
w
i
r
e
less co
mm
u
n
i
c
a
tio
n
syste
m
su
ch
as 3
.
3
t
o
3
.
7
GHz (Wi-M
A
X), 3.7-4.2
GHz (C-b
and
satellite), 5
.
15
to
5.82
5 GHz
(WLAN)
,7
.25
-
7
.
75
GHz (X-b
and
sat
e
llite co
mm
u
n
i
catio
n
syst
em)
and
8
.
0
25-8.4
G
Hz (IT
U-b
a
n
d
) cau
s
es
p
o
t
en
tial
i
n
t
e
rfe
rence
s
t
o
t
h
e
U
W
B
sy
st
em
s ope
r
a
t
i
ng
ove
r
3.
1
-
1
0
.
6
G
H
z.
U
W
B
ant
e
n
n
a i
s
t
h
e m
o
st
im
po
rt
ant
el
em
ent
of U
W
B
sy
st
em
and s
h
oul
d p
r
ovi
de a ba
nd
not
ch
ed c
h
ar
act
eri
s
t
i
c
s t
o
avoi
d t
h
e p
o
t
e
nt
i
a
l
i
n
t
e
rfe
rence
s
o
f
t
h
e
f
o
rem
e
nt
i
one
d ba
nd
.
Interfere
n
ces
of these na
rrow ba
nd system
s
with UWB syste
m
can
be elim
inated with the use
of
filters wh
ich
lead
s to
i
n
creased
size, co
st and
co
m
p
le
x
ity of UWB system. Desi
g
n
o
f
t
h
e UW
B an
tenn
a with
b
a
nd
no
tch
e
d
ch
aracteristics
is
th
e
effectiv
e an
d sim
p
le
m
e
th
o
d
to
a
voi
d t
h
e
i
n
t
e
r
f
ere
n
ce.
Tw
o
m
a
jo
r
li
mitatio
n
s
of
UW
B
an
ten
n
a
with
m
u
ltip
le b
a
nd
no
tch
fun
c
tio
ns are m
u
tu
al coup
lin
g
o
f
m
u
ltib
an
d
rej
ection
ele
m
ent and s
p
ace
restrictions i
n
the
c
o
mpact UWB a
n
t
e
nna
[6].
Seve
ral di
ffe
rent te
chni
que
s
have
bee
n
Evaluation Warning : The document was created with Spire.PDF for Python.
I
S
SN
:
2
088
-87
08
IJECE
Vol. 5, No. 6, D
ecem
ber
2015 :
1433 –
1440
1
434
p
r
op
o
s
ed
and
repo
rted
in literatu
re to b
a
nd
n
o
t
ch
si
n
g
l
e and
m
u
ltip
le frequ
en
cy
b
a
n
d
s
[7
]-[12
].
In
[7
]
crescen
t sl
o
t
,
U-sl
o
t
[8
] an
d
co
m
p
act co
p
l
an
ar
wav
e
gu
id
e
(CPW) reson
a
n
t
cell (CCRC) [9
] are
u
s
ed
to realize
si
ngl
e ban
d
-
n
ot
che
d
f
u
nct
i
o
n. In [1
0]
t
w
o
ne
st
ed
c
-
sh
aped st
u
b
s
gi
ves dual
not
c
h
ed ba
nd
,
i
n
t
e
rdi
g
i
t
a
l
capaci
t
a
nce l
o
adi
n
g l
o
o
p
res
onat
o
r (
I
DC
L
L
R
)
gene
rat
e
s d
u
al
not
c
h
ed
ba
nds
[C
LL]
i
n
[11]
. I
n
[
13]
co
m
posi
t
e
reson
a
tor
with m
u
ltip
le reson
a
n
t
ch
aracteri
s
tics is u
s
ed
fo
r ob
tain
ing
t
r
ip
le b
a
nd
n
o
t
ch
ed characteri
s
tics.
Blu
e
to
o
t
h
Sp
ecial In
terest Gro
u
p
(SIG) in
20
06
selected
W
i
-Med
ia Allian
ce m
u
lt
ib
and
o
r
t
h
ogo
nal freq
u
e
n
c
y
di
vi
si
o
n
m
u
l
t
i
pl
exi
n
g (M
B
-
OF
DM
) ve
rsi
o
n o
f
U
W
B
,
w
h
i
c
h c
oul
d be
i
n
t
e
grat
e
d
wi
t
h
B
l
uet
oot
h
wi
rel
e
ss
technology [14].This license free fre
qu
en
cy b
a
nd
is in
tegrated
with
th
e a
n
othe
r license free UW
B
fre
quency
b
a
nd
t
o
facilitate th
e adv
a
n
t
ag
es
o
f
bo
th
Blu
e
to
o
t
h
an
d
UW
B frequ
ency
b
a
nd
for
d
i
fferen
t
ap
p
licatio
n
s
i
n
li
mited
av
ailab
l
e sp
ace.
Dual b
a
nd
an
tenn
a op
eratin
g
i
n
Blu
e
too
t
h
an
d
UW
B
p
r
opo
sed
b
y
[1
5
]-[1
6
]
bu
t
with
ou
t b
a
nd n
o
t
ch
ch
aracteristics. Th
e UW
B an
tenn
a wi
t
h
i
n
t
e
g
r
at
ed B
l
uet
o
ot
h an
d ba
n
d
-
n
ot
che
d
charact
e
r
i
s
t
i
c
s i
s
i
nvest
i
g
at
e
d
i
n
[
1
7]
. L-
sha
p
ed st
ubs
o
f
q
u
a
rt
er
wavel
e
n
g
t
h pl
ace
d i
n
t
h
e g
r
o
u
n
d
pl
a
n
e
nea
r
feed
l
i
n
e a
n
d
besi
des t
h
e
r
a
di
at
i
n
g
pat
c
h
t
o
c
r
eat
e a
r
e
so
nance
at
B
l
uet
oot
h a
n
d
dual
ba
nd
n
o
t
c
hi
n
g
respectively i
n
[18].
In t
h
i
s
pape
r a
sim
p
l
e
, com
p
act
,
m
i
crost
r
i
p
feed
pri
n
t
e
d d
u
al
ba
nd a
n
t
e
n
n
a f
o
r B
l
uet
o
o
t
h an
d U
W
B
ap
p
lication
s
with
W
i
-Max
&
C-b
a
nd
satellite
d
o
w
n
lin
k and
WLAN & DSRC (d
ed
icated
sh
ort rang
e
com
m
uni
cat
i
on)
qua
d
r
u
p
l
e
b
a
nd
n
o
t
c
he
d charact
eri
s
t
i
c
s i
s
pr
op
ose
d
. T
h
e pr
op
ose
d
ant
e
nna c
o
nsi
s
t
s
of a
U-
sha
p
ed
radiating elem
ent feed by a 50
Ω
m
i
crost
r
i
p
l
i
n
e
wi
t
h
m
odi
fi
ed
gr
o
u
nd
pl
ane
.
A
pa
i
r
of L
-
s
h
ape
d
sl
ot
s
i
n
t
h
e radi
at
i
n
g pat
c
h a
nd i
n
vert
e
d
U-s
h
a
p
ed sl
ot
i
n
feed
l
i
n
e i
s
et
ched
t
o
obt
ai
n t
h
e 3.
3-
4.
2G
Hz an
d 5.
1
5
-
6
G
Hz
b
a
nd
notch
ed
ch
aracteristics resp
ectively. Two
p
a
ras
itic ele
m
en
ts at
th
e edg
e
of the U-sh
ap
ed
radiator
are use
d
t
o
re
son
a
t
e
at
2.
45
GHz
fre
q
u
en
c
y
. The
pr
o
pos
ed
an
tenn
a is
d
e
sign
ed
, simu
lated
,
fabricated
and
t
e
st
ed. Si
m
u
l
a
ti
on i
s
car
ri
ed
out
usi
n
g m
e
t
h
od
of m
o
m
e
nt
s based el
ect
r
o
m
a
gnet
i
c
sim
u
l
a
t
i
on so
ft
wa
re
C
A
D
FEK
O
(6.2
suit
e).
2.
A
N
T
EN
NA
DESIGN
Th
e
g
e
o
m
etr
y
of
th
e
p
r
o
posed
du
al b
a
nd UW
B an
tenna w
ith b
a
nd
n
o
t
ch
ed ch
ar
acter
i
stics is
illu
strated
in
Fig
u
re 1. Th
e p
r
o
p
o
s
ed
an
t
e
n
n
a
is d
e
signed
on
a FR4
d
i
electric su
b
s
trate with
d
i
electric
constant (
ε
r
) =4
.4
, loss tang
en
t (tan
δ
) =
0.
0
2
wi
t
h
t
h
i
c
k
n
e
ss o
f
1
.
6m
m
.
U-sha
p
e
d
ra
di
at
i
ng
pat
c
h i
s
fee
d
by
a
pri
n
t
e
d m
i
crost
r
i
p
l
i
n
e on t
h
e t
op si
de of t
h
e su
bst
r
at
e and
pri
n
t
e
d m
o
di
fi
ed g
r
ou
n
d
pl
ane wi
t
h
a s
i
ze of
W
sub
×L
gnd
(2
4 × 10 m
m
2
) on
t
h
e bot
t
o
m
si
de of t
h
e s
ubst
r
at
e. To o
b
t
a
i
n
t
h
e 50
Ω
cha
r
a
c
t
e
ri
st
i
c
s im
pedance
,
width
(
w
f
) a
n
d
l
e
ngt
h (l
f
)
of
m
i
crost
r
i
p
fed
l
i
n
e i
s
fi
xe
d at
3m
m
and 1
1
m
m
respect
i
v
el
y. The
t
o
t
a
l
di
m
e
nsi
o
n
o
f
th
e
p
r
op
osed
an
tenn
a is
24 × 35
mm
2
.
Fi
gu
re
1.
Ge
o
m
et
ry
of P
r
op
o
s
ed a
n
t
e
n
n
a
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
ECE
I
S
SN
:
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8-8
7
0
8
C
o
m
p
a
c
t
I
n
t
e
g
r
at
ed
Bl
uet
oot
h
UWB
Ant
e
nn
a w
i
t
h
Q
u
a
d
r
u
pl
e B
a
n
d
not
c
h
ed C
har
act
e
ri
s
t
i
c
s (
R
ekha
La
ba
de)
1
435
Tabl
e
1.
O
p
t
i
m
u
m
Dim
e
nsi
o
n
s
o
f
P
r
o
p
o
se
d
Ant
e
nna
(
A
l
l
Di
m
e
nsi
ons a
r
e i
n
m
m
)
Para
m
e
ter
Value
Para
m
e
ter
Value
Para
m
e
ter
Value
Para
m
e
ter
Value
Para
m
e
ter
Value
W
s
ub
24
L
s
ub
35
L
f
11
W
f
3
Rin
4
Rout
11
wc
4
lc
1.
5
L
gnd
10
wg
2
lg 2
L
i
b
20
W
i
b
0.
5
s1
10
s2
1.
5
w1
0.
35
l1 8
l2 1.
2
t1
0.
5
The structure
is evol
ved
from the se
m
i
cir
c
ular
m
ono
p
o
l
e
ant
e
n
n
a t
o
U-s
h
a
p
ed
ra
di
at
or a
nd t
h
e
pr
o
pose
d
one
. The l
o
wer
ban
d
ed
ge f
r
eq
ue
n
c
y
‘f
l
’ o
f
U
W
B
has bee
n
det
e
rm
i
n
ed usi
n
g fo
rm
ul
as [4]
as gi
v
e
n
in
Eq
u
a
tion
(1
).
f
.
∗
(
1
)
Whe
r
e,
L =
ef
fect
i
v
e l
e
n
g
t
h
of
t
h
e ci
rcul
ar
m
onop
ol
e,
k =
1.
1
5
i
s
t
a
ken
em
pi
ri
cal
l
y
for
a di
el
ect
ri
c
su
bstrate with
ε
r
= 4.
4 a
n
d
di
el
ect
ri
c t
h
i
c
kne
s
s
o
f
1.
6m
m
,
R
ou
t
=11m
m
.
Furt
her, two rectangular slot
s are cut from
the e
dge
s of t
h
e m
odi
fi
ed g
r
ou
n
d
pl
a
n
e t
o
enha
nce t
h
e
i
m
p
e
d
a
n
ce m
a
tch
i
n
g
i
n
UWB freq
u
e
n
c
y ban
d
. To
prev
en
t th
e in
terferen
ces
o
f
W
i
-M
AX
& C-b
a
nd
satellite
do
w
n
l
i
nk
fre
q
u
ency
a
nd
WL
AN
& DSR
C
n
a
rr
ow
ba
nd sy
st
em
s, a pai
r
o
f
L-s
h
a
p
edsl
ot
i
n
t
h
e ra
di
at
i
ng pat
c
h
and a
n
inverte
d
U-shape
d
slot is etch
ed in the m
i
crostrip feed
line are etc
h
ed
res
p
ectiv
ely. Th
e leng
th
s
o
f
the
sl
ot
has
bee
n
t
a
ken
ab
o
u
t
hal
f
t
h
e g
u
i
d
e
d
wa
v
e
l
e
ngt
h:
L
λ
(
2
)
λ
λ
ε
(
3
)
Whe
r
e,
ε
re
ff
= effective dielectric
consta
nt =
(
ε
r
+ 1)/2,
λ
0
= free s
p
ace
wavel
e
ngt
h =
C
0
/f
r
, C
0
=
v
e
lo
city of light sig
n
a
l and
f
r
= cen
tr
e fr
equ
e
ncy o
f
th
e
no
tch b
a
n
d
.
Th
e to
tal len
g
t
h
o
f
L-sh
ap
ed
p
a
ir, Lsl
o
t
1
= 2(s
1
+s
2
+t
1
) = 24.
6m
m
i
s
et
ched i
n
t
h
e ra
di
at
i
ng pat
c
h t
o
g
e
n
e
r
a
te a
n
o
t
ch
f
o
r
f
i
r
s
t two con
s
ecu
tive ban
d
s cen
ter
e
d
at 3
.
7
G
H
z
(
3
.3-
3
.7G
H
z
&3
.7
-4
.2
GH
z) and
second
i
nve
rt
ed U
-
sl
o
t
Lsl
o
t
2
=(2l
1
+l
2
+2t
2
) = 1
6
.52
mm is etch
e
d
in
th
e m
i
cro
s
trip
feed
line to
g
e
n
e
rate
a n
e
xt
con
s
ecut
i
v
e
n
o
t
c
h ba
n
d
s c
e
nt
ere
d
at
5.
5G
Hz (
5
.
1
5
-
5
.
8
2
5
G
Hz & 5.
50 t
o
5.
92
5
GHz
).T
h
e o
p
t
i
m
i
zed
di
m
e
nsi
ons of
sl
ot
1
an
d sl
ot
2
are
24mm
and
19.1mm
respec
tively.
By p
o
s
itio
n
i
ng th
e two
rectang
u
l
ar p
a
rasitic
ele
m
en
ts
fro
m
u
p
p
e
r edg
e
to
cen
tre of U- p
a
tch
,
d
e
sired
dual
-
ba
n
d
c
h
ar
act
eri
s
t
i
c
s fo
r
B
l
uet
oot
h a
n
d
U
W
B
o
p
e
r
at
i
ons
h
a
ve
bee
n
achi
e
ve
d.
Pl
a
c
i
ng t
h
e
rect
ang
u
l
a
r
p
a
rasitic elemen
ts to
th
e cen
t
re portio
n
of rad
i
a
tin
g
U-sh
ap
ed
p
a
tch,
m
a
k
e
s th
e an
tenn
a co
m
p
act an
d
sym
m
et
ri
c one.
Two
rectangu
lar p
a
rasitic e
l
e
m
en
ts reso
n
a
te
o
v
e
r Blu
e
too
t
h
frequ
e
n
c
y b
a
nd
wh
ile U-sh
ap
ed
radi
at
i
n
g el
em
ent
re
so
nat
e
s
ove
r
U
W
B
ba
nd
. T
h
e t
o
t
a
l
l
e
ngt
h
‘L
ib
’ of
th
e two
p
a
rasitic ele
m
en
ts is abo
u
t
qua
rt
er
wa
ve l
o
n
g
at
ce
nt
re
B
l
uet
oot
h
fre
q
u
e
n
cy
ba
n
d
‘f
ib
’.
L
(4
)
Th
e op
ti
m
i
zed
d
i
m
e
n
s
io
n
s
o
f
Blu
e
to
o
t
h
p
a
rasitic
strip
are
wid
t
h
‘W
ib
’ =
0.
5m
m
and l
e
n
g
t
h
‘L
ib
’= 2
0
m
m
.
The perform
a
nce of U-s
h
a
p
ed
d
u
al
ba
n
d
ant
e
nna wi
t
h
q
u
a
d
r
upl
e b
a
nd n
o
t
c
he
d charact
e
r
i
s
t
i
c
depe
n
d
s o
n
di
ffe
rent pa
ram
e
ters such as in
ner (R
in
) a
nd
out
e
r
radi
us (
R
out
) of sem
i
-ann
ul
ar ri
ng
, g
a
p(
‘g
’)
bet
w
ee
n t
h
e ra
di
at
i
ng pat
c
h a
nd
gr
o
u
n
d
pl
a
n
e, l
e
n
g
t
h
(l
c
) and
wi
dt
h
(
w
c
)
of c
o
r
n
er c
u
t
sl
ot
s i
n
t
h
e
m
odi
fi
ed
gr
o
u
n
d
pl
ane,
wi
dt
h
(t
1
)a
nd
l
e
ngt
h(s
1
+s
2
)
of
t
h
e L-
sha
p
e
d
sl
ot
s i
n
t
h
e
ra
d
i
at
i
ng pat
c
h, l
e
ngt
h(l
1
+l
2
) a
n
d
wi
dt
h
(w
1
)of th
e inverted
U-sh
ap
ed
slo
t
s in
t
h
e
micro
s
trip
feed
lin
e, leng
th
(L
ib
) a
n
d
wi
dt
h (
W
ib
) of t
h
e
p
a
rasitic
el
em
ent
ope
rat
i
ng at
B
l
uet
o
ot
h
fre
que
ncy
ba
nd
.
Insi
ght
o
f
t
h
e
ant
e
nna c
h
ar
act
eri
s
t
i
c
s i
s
g
i
ven by
co
n
d
u
c
t
i
ng t
h
e par
a
m
e
t
r
i
c
st
udy
of im
port
a
nt
param
e
t
e
rs. T
w
o
L-s
h
a
p
ed
s
l
ot
ha
vi
n
g
l
e
n
g
t
h L
slot1
= 23mm
is etched in
U-s
h
a
p
ed ra
diating
patch t
o
create a
not
c
h
ba
nd at
cent
r
e f
r
eq
ue
nc
y
of 3.
75
G
H
z(
3.
3-
4.
2G
Hz
).E
ffect
o
f
l
e
ngt
h and
wi
dt
h
vari
at
i
ons o
f
t
h
ese
sl
ot
i
s
depi
ct
ed
i
n
Fi
gu
re
2(a
)
a
n
d
(b
) re
spect
i
v
el
y
.
Fi
g
u
re
2
(
a) shows
that with
inc
r
ease
in
th
e
l
e
n
g
t
h
o
f
th
e
s
l
o
t
,
reso
na
nt
f
r
e
q
u
e
ncy
s
h
i
f
t
s
t
o
t
h
e l
e
ft
si
de
o
f
t
h
e n
o
t
c
h
ban
d
beca
use i
n
cre
a
se i
n
t
h
e sl
ot
l
e
ngt
h
decreas
es t
h
e
resona
nce fre
quency.
While increase in
t
h
e
sl
ot
wi
dt
h i
n
c
r
eases ban
d
w
i
d
t
h
of
not
c
h
ed
b
a
nd
wi
t
h
o
u
t
af
fect
i
ng
th
e UWB ch
aracteristics as illu
strated
i
n
Fi
gu
re 2(b).
Evaluation Warning : The document was created with Spire.PDF for Python.
I
S
SN
:
2
088
-87
08
IJECE
Vol. 5, No. 6, D
ecem
ber
2015 :
1433 –
1440
1
436
(a)
(b
)
Fig
u
re
2
.
Sim
u
lated
reflection co
efficien
t
o
f
W
i
-Max & C
-
b
a
nd
satellite d
o
w
n
link
b
a
nd–n
o
t
ch
ed UWB
anten
n
a fo
r (a) diffe
re
nt
slot
le
ngt
h ‘L
slot1
’ (
b
)
di
f
f
ere
n
t
sl
ot
l
e
ngt
h
‘
W
slot1
’
(a)
(b
)
Fi
gu
re
3.
Si
m
u
l
a
t
e
d refl
ect
i
o
n
coe
ffi
ci
ent
of
dual
ba
nd
–
not
c
h
ed
U
W
B
a
n
t
e
nna
f
o
r
(a
)
di
ff
erent
sl
ot
l
e
n
g
t
h
‘L
slot2
’
of i
nve
r
t
ed U
-
sl
ot
(
b
)
di
ffe
re
nt
sl
ot
w
i
dt
h
‘
W
slot2
’ o
f
inve
rted U -slo
t
Si
m
ilar in
v
e
stig
atio
ns are
o
b
serv
ed
b
y
v
a
ryin
g
th
e leng
t
h
and
wi
d
t
h
of th
e inv
e
rted
U-sl
o
t
in
th
e
feed l
i
n
e
t
o
g
e
nerat
e
a
n
o
t
c
h b
a
n
d
ce
nt
er
ed at
5
.
5
G
Hz
(5
.1
5
-
6
GHz
).
Fr
om
t
h
e above
anal
y
s
i
s
we ca
n
concl
ude t
h
at
,
l
e
ngt
h a
nd
wi
d
t
h of sl
ot
s m
a
inl
y
cont
r
o
l
s
t
h
e perf
orm
a
nce of n
o
t
c
hed
-
ba
n
d
ant
e
n
n
a. Si
m
u
l
a
t
e
d
ret
u
r
n
l
o
ss
of i
nve
rt
ed
U-s
h
a
p
ed sl
ot
i
n
t
h
e feedl
i
n
e f
o
r l
e
ngt
h an
d wi
dt
h
vari
at
i
ons i
s
d
e
pi
ct
ed i
n
Fi
g
u
r
e 3(a
)
an
d (b
).
Fi
gu
re 4.
Si
m
u
l
a
t
e
d
refl
ect
i
o
n
coe
ffi
ci
ent
of
Int
e
grat
ed
B
l
u
e
t
oot
h
an
d ba
n
d
–
n
o
t
c
he
d U
W
B
ant
e
n
n
a fo
r (
a
)
di
ffe
re
nt
pa
rasi
t
i
c
el
em
ent
l
e
ngt
h
‘L
ib
’ (b
) d
i
fferen
t p
a
rasitic ele
m
en
t wid
t
h ‘W
ib
’
Two
qu
arter wav
e
leng
th
p
a
rasitic strip
resonatin
g
at cen
tre
Blu
e
to
o
t
h
frequ
e
n
c
y are em
b
e
d
d
e
d
at the
two
edg
e
s
o
f
U-sh
ap
ed rad
i
atin
g
p
a
tch
at
min
i
m
u
m
cu
rren
t
po
sition
o
f
UWB to
en
sure t
h
e m
i
n
i
m
u
m
co
up
ling
b
e
t
w
een
UWB and Blu
e
to
o
t
h
elemen
t. Th
e leng
th
o
f
two
p
a
rasitic ele
m
en
t
is calcu
lated
u
s
ing
Equ
a
tio
n
(3).To
tal len
g
t
h
of th
eBlu
etoo
th
el
e
m
en
t L
ib
= 2
0
mm, wh
ich
is less th
an
t
h
e calcu
l
ated
leng
th d
u
e
t
o
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
ECE
I
S
SN
:
208
8-8
7
0
8
C
o
m
p
a
c
t
I
n
t
e
g
r
at
ed
Bl
uet
oot
h
UWB
Ant
e
nn
a w
i
t
h
Q
u
a
d
r
u
pl
e B
a
n
d
not
c
h
ed C
har
act
e
ri
s
t
i
c
s (
R
ekha
La
ba
de)
1
437
th
e d
i
electric su
b
s
t
r
ate,
fring
i
n
g effect an
d
m
u
tu
al co
up
ling
b
e
tween
U-sh
ap
ed
p
a
tch
and
Blu
e
t
o
o
t
h
p
a
rasitic
ele
m
en
ts [19
]
. Sim
u
lated
reflectio
n
coefficien
t fo
r len
g
t
h and
wid
t
h v
a
riatio
n
s
of th
e Blu
e
too
t
h
p
a
rasitic
ele
m
en
t is sh
o
w
n
in
Figu
re 4
.
Th
e leng
t
h
‘L
ib
’ of Bluetooth elem
ent decides t
h
e resonance
fre
quency.
R
e
sona
nce
fre
que
ncy
shi
f
t
s
t
o
t
h
e l
o
wer si
de o
f
t
h
e
pl
ot
with
in
crease in
leng
th
as sho
w
n
in
Fi
gu
re 4
(
a).
Variation
s
in
‘W
ib
’ af
fect
s t
h
e ban
d
wi
dt
h a
s
wel
l
as resonance f
r
e
que
n
c
y
.
As ‘
W
ib
’ i
n
crease
s
im
pedance
ban
d
w
i
d
t
h
o
f
B
l
uet
oot
h
ban
d
i
n
c
r
eases a
n
d
res
ona
nce
fre
q
u
ency
of
B
l
uet
oot
h decrease
s
as de
picted in
Figure
4(
b)
.
3.
RESULTS
A
N
D
DI
SC
US
S
I
ONS
Su
rface current d
i
stribu
tion
s
are
u
s
ed
to an
alyse th
e
effect
o
f
Blu
e
too
t
h parasitic strip
,
t
h
e L-sh
ap
ed
sl
ot
s i
n
t
h
e ra
di
at
i
ng p
a
t
c
h
and a
n
i
nve
rt
e
d
U-
sha
p
e
d
sl
ot
i
n
feed l
i
n
e. At
2.
45
G
H
z
,
m
a
xim
u
m
cur
r
ent
co
n
c
en
tration
is o
b
s
erv
e
d
al
o
n
g
p
a
rasitic Blu
e
to
o
t
h
elemen
t sh
owing th
at th
ese ele
m
en
ts are p
r
i
m
aril
y
resp
o
n
si
bl
e f
o
r
pr
od
uci
n
g
res
ona
nce at
2
.
4
5
GHz
, w
h
i
l
e
U-
sha
p
ed
radi
at
i
n
g pat
c
h ap
pear
s t
o
be
no
n-
ra
d
i
at
i
n
g
at this freque
n
cy. Intense current co
nce
n
t
r
at
i
on ar
o
u
n
d
t
h
e
L and I
n
vert
e
d
U
-
sha
p
e
d
sl
ot
s at
3.7
5
G
H
z
and
5.
5G
Hz re
spec
t
i
v
el
y
sho
w
s t
h
e ef
fect
o
f
ba
nd
n
o
t
c
hi
n
g
a
n
d i
n
depe
n
d
ent
cont
rol
of i
n
di
vi
d
u
al
n
o
t
c
he
d
ban
d
.
Ot
he
r t
h
a
n
B
l
u
e
t
oot
h a
n
d n
o
t
c
hed
fre
q
u
enc
y
ban
d
s m
a
xim
u
m
curre
nt
conce
n
t
r
at
i
o
n i
s
obse
r
ved
o
n
t
h
e ed
ge
s
of
pat
c
h s
h
o
w
i
n
g
U
W
B
be
ha
vi
o
u
r
o
f
a
n
t
e
n
n
a
.
(a)
(b
)
(c)
(d
)
Fi
gu
re
5.
S
u
r
f
a
ce cu
rre
nt
di
st
r
i
but
i
o
n
of
i
n
t
e
grat
e
d
B
l
uet
o
o
t
h an
d
ba
nd
n
o
t
ched
U
W
B
a
n
t
e
nna at
(a) 2.
4
5
G
H
z (
b
) 3.
5G
Hz (c)
5
.
5G
Hz (d
) 7.
5
G
Hz
Fig
u
r
e
6
.
Fab
r
i
cated
pro
t
o
t
ypes of
th
e pro
posed
antenna
Fi
gu
re
7.
Si
m
u
l
a
t
e
d an
d m
easure
d
S
11
of
th
e
p
r
op
o
s
ed
an
te
nn
a
The propose
d integrated Bl
uetoot
h, band notc
h
ed UW
B
antenna was success
f
ully
fa
bricated
as
sho
w
n i
n
Fi
g
u
r
e 6. The i
m
pedance
ban
d
w
i
d
t
h
was m
easure
d
usi
ng an
Agi
l
e
nt
Fi
el
d
-
f
ox
N9
9
1
6
A
vect
o
r
net
w
or
k anal
y
zer as de
pi
ct
ed i
n
Fi
g
u
re
7.
Sm
al
l
di
screpa
ncy
bet
w
ee
n s
i
m
u
l
a
t
e
d and
m
easured
resu
l
t
s
was
obs
er
ved
.
T
h
i
s
di
scre
pa
ncy
i
s
due
t
o
t
h
e
use
of
SM
A c
o
nn
ect
or a
nd
cabl
e
t
h
r
o
u
g
h
w
h
i
c
h SM
A co
n
n
ec
t
o
r
of
the ante
nna
connecte
d
to VNA for m
easure
m
ent of
refl
ect
io
n
co
efficien
t
wh
ile
d
u
ring
si
m
u
la
tio
n
using CAD
FEK
O
ant
e
n
n
a
i
s
exci
t
e
d by
a wi
re po
rt
ha
vi
n
g
5
0
Ω
im
pedance
fo
r al
l
fre
que
nci
e
s. M
easure
d
res
u
l
t
s
sho
w
s
t
h
e
pr
op
ose
d
a
n
t
e
n
n
a i
n
t
e
grat
es B
l
uet
o
ot
h
f
r
e
que
ncy
ba
nd
f
r
om
2.
4-
2.
5G
Hz
whi
l
e
re
ject
s
W
i
-M
A
X
&
C
-
b
a
n
d
satellite d
o
w
n
l
in
k
(3
.3GHz-4.2GHz) and
WLAN &
DSRC band
(5-6
GHz
),
whi
l
e pr
ovi
di
n
g
t
h
e wi
de
im
pedance ba
n
d
wi
dt
h f
r
om
3.1G
Hz t
o
1
1
G
Hz.R
a
d
i
a
t
i
on p
a
t
t
e
rns o
f
ant
e
nna ac
ross E
-
p
l
ane and
H-
pl
a
n
es at
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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:
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-87
08
IJECE
Vol. 5, No. 6, D
ecem
ber
2015 :
1433 –
1440
1
438
2
.
4
GHz,
4
.
5
GHz and
7GHz are illu
strated
in
Fi
g
u
re
8
(
a) and
(b).Di
rectio
n
a
l p
a
ttern
in
E-p
l
an
e and
o
m
n
i
-
di
rect
i
o
nal
pat
t
e
rn i
n
H-
pl
a
n
e are obse
r
ve
d o
v
er a
UWB frequency
band exce
pt
at the notche
d
bands
fre
que
nci
e
s.
Fi
gu
re
8.
R
a
di
at
i
on
pat
t
e
rn
o
f
t
h
e
pr
o
pose
d
a
n
t
e
n
n
a
fo
r
(a)
E-pl
a
n
e a
n
d
(
b
) H
-
pl
ane
at
sa
m
p
li
ng
fre
qu
en
ci
es
2.
4 GHz
, 4.
5 G
H
z
a
n
d
7
G
H
z
Ave
r
a
g
e radi
at
i
on ef
fi
ci
ency
acros
s t
h
e U
W
B
fre
q
uency
ban
d
i
s
abo
u
t
75% an
d at
n
o
t
c
he
d ba
nd
10
% dr
o
p
i
n
t
h
e effi
ci
en
cy
from
3.3-
4.
2
G
Hz an
d 5.
1
5
-6GHz clearly ind
i
cates th
e
W
i
Max
&
C-b
a
nd satelli
te
d
o
wn
lin
k
and W
L
AN & DSRC
b
a
nd
rejectio
n
cap
a
b
ility
o
f
th
e p
r
opo
sed
an
ten
n
a
. A
10
% drop
i
n
th
e
effi
ci
ency
i
s
d
u
e
t
o
l
e
ss radi
at
i
on of
ant
e
n
n
a
at
a
f
o
r
em
ent
i
one
d n
o
t
c
he
d fre
que
ncy
b
a
nd
s. Si
m
i
l
a
rly
alm
o
st
st
abl
e
gai
n
ove
r U
W
B
e
x
ce
pt
not
c
h
ed
ba
n
d
s
i
s
o
b
ser
v
e
d
as
sho
w
n i
n
Fi
gu
r
e
9.
Fig
u
r
e
9
.
Sim
u
lated
g
a
i
n
o
f
t
h
e pr
opo
sed an
t
e
n
n
a
Fig
u
r
e
10
. Ef
f
i
cien
cy of
th
e pr
opo
sed an
ten
n
a
Fi
gu
re 1
1
.
M
e
a
s
ure
d
g
r
o
u
p
de
l
a
y
of
t
h
e pr
op
ose
d
antenna
Figure
12. Tim
e
Dom
a
in Anal
ysi
Evaluation Warning : The document was created with Spire.PDF for Python.
I
J
ECE
I
S
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:
208
8-8
7
0
8
C
o
m
p
a
c
t
I
n
t
e
g
r
at
ed
Bl
uet
oot
h
UWB
Ant
e
nn
a w
i
t
h
Q
u
a
d
r
u
pl
e B
a
n
d
not
c
h
ed C
har
act
e
ri
s
t
i
c
s (
R
ekha
La
ba
de)
1
439
Tim
e
dom
ai
n charact
e
r
i
s
t
i
c
s of
U
W
B
ant
e
n
n
a i
s
gi
ve
n i
n
t
e
rm
s of p
u
l
s
e
sprea
d
i
n
g a
n
d
gr
o
up
del
a
y
per
f
o
r
m
a
nce.
Go
o
d
t
i
m
e dom
ai
n per
f
o
r
m
a
nce i
s
a
n
i
m
po
rtan
t requ
iremen
t of
UW
B
an
tenn
a
[20
]
-[21
]. Tim
e
delay of im
pulse signal at di
ffe
re
nt fre
que
ncies
gives
t
h
e group delay.
Two ide
n
tical antennas a
r
e placed
400mm
apart from
each ot
her for m
easur
ement of
group
de
lay. Less va
riati
on i
n
group
de
lay is obse
r
ve
d ove
r
U
W
B
fre
q
u
enc
y
ban
d
e
x
ce
pt
not
c
h
ed
f
r
eq
ue
ncy
ba
n
d
.
Gr
o
u
p
del
a
y
of
pr
o
pos
ed
U
W
B
an
t
e
nna i
s
de
pi
ct
ed
i
n
Fi
gu
re 1
1
. Exc
e
pt
not
c
h
ed f
r
e
que
ncy
ba
nds l
e
ss vari
at
i
on i
n
t
h
e gr
o
up d
e
l
a
y
are obser
v
e
d o
v
er ent
i
r
e
U
W
B
ban
d
.
P
u
l
s
e sp
readi
ng
be
ha
vi
or
o
f
p
r
op
ose
d
ant
e
n
n
a i
s
o
b
t
a
i
n
ed
usi
n
g t
i
m
e
dom
ai
n an
al
y
s
i
s
of C
A
D
FEK
O
[2
4]
. E
x
ci
t
e
d
Gaus
si
an
p
u
l
s
e
an
d rec
e
i
v
e
d
s
i
gnal
fo
r I
n
t
e
gr
at
ed B
l
uet
o
ot
h
an
d
ban
d
n
o
t
c
hed
U
W
B
m
o
n
o
p
o
l
e
antenna is s
hown in
Figure
12.
A sm
all ri
nging i
n
the
recei
ved pulse is
observe
d.
Tabl
e
1. C
o
m
p
ari
s
o
n
bet
w
ee
n
re
po
rt
ed i
n
t
e
g
r
at
ed B
l
uet
o
ot
h a
n
d
B
a
n
d
n
o
t
c
h
U
W
B
ant
e
n
n
as
Par
a
m
e
ter Ref.
[14]
Ref.
[22]
Re
f.
[ 18]
Ref[2
3]
Pr
oposed W
o
r
k
UW
B oper
a
ting
fr
equency
3.
1-
10.
6GHz 3.
1-
10.
6GHz
3.
1-
11.
434
GHz
3.
04-
10.
8GHz 3.
1-
11GHz
Bluetooth
fr
equency
band
2.
4-
2.
5GHz 2.
4382.
4
95GHz
2.
18-
2.
59GHz
2.
33-
2.
5GHz
2.
4-
2.
5GHz
Nu
m
b
e
r
of
notched band
s
Two
(
C
MMB
2.
856GHz and
W
L
AN 5.
5GHz)
Single(
W
L
AN
5.
14GHz to
5.
823GHz)
Single (
W
L
A
N
5.
15-
5.
825GHz)
Dual(
W
i-
Max:3.
3-
4.1GHz),
WL
AN(5
-
5.
9GHz )
Qu
ad
(Wi
M
A
X
,C-
band satellite
downlink,
W
L
AN,DS
RC)
Dielectr
i
c constant
3.
48
4.
4
4.
4
4.
4
4.
4
T
h
ickness 0.
832
1.
59
1.
6
1.
6
1.
6
Size(Lsub ×
W
s
ub)
m
m
2
39
.
75 × 31
.
5
52 × 32
50 × 24
41 × 30
35 × 24
4.
CO
NCL
USI
O
N
A com
p
act
d
u
al
ba
n
d
ant
e
nna
f
o
r B
l
u
e
t
oot
h
an
d
U
W
B
ap
pl
i
cat
i
ons
wi
t
h
ba
n
d
n
o
t
c
hed
ch
aracteristics h
a
s
b
e
en
p
r
esen
ted
.
To
ach
i
ev
e th
e in
te
g
r
at
ed
Blu
e
t
o
o
t
h
ch
aracteristics t
w
o p
a
rasitic ele
m
en
ts
are
placed at t
w
o edges
of the U-sha
p
e
d
ra
diating
patc
h a
n
d two L
-
s
h
aped sl
ots an
d Inverte
d
U-s
h
a
p
e
d
sl
ots
are etche
d
i
n
radiating patc
h
and th
e
m
i
crost
r
i
p
fee
d
l
i
n
e
r
e
spect
i
v
el
y
t
o
obt
ai
ne
d
q
u
a
d
r
upl
e
ba
nd
not
c
h
ed
ch
aracteristics. It h
a
s b
e
en
ob
serv
ed
th
at by si
m
p
ly
ad
j
u
stin
g
th
e leng
th an
d
wid
t
h
o
f
th
e p
a
rasitic el
e
m
en
t
and
t
h
e
sl
ot
s,
r
e
so
nant
fre
q
u
e
n
cy
an
d
ba
nd
w
i
dt
h
of
i
n
t
e
g
r
at
ed B
l
uet
oot
h a
n
d
n
o
t
c
he
d
ba
n
d
ca
n
be c
ont
ro
l
l
e
d.
REFERE
NC
ES
[1]
First report and
order, “Revisio
n of part 15 of the
commissio
n
’s Rule Regar
d
i
ng UWB Tra
n
smission
Sy
stem,
Federal Communication
Commission
, 2002.
[2]
Soheil Rad
i
om
,
Hadi Aliakbarian, Gu
y
A.
E. Vandenbosch
,
and
Georges G. E. G
i
elen
, “
An Eff
e
ctive
Technique f
o
r
S
y
mmetric Plan
ar Monopole An
tenna Min
i
atur
ization
”
,
I
EEE Tr
ansaction on An
tennas And Pro
pagation
, V
o
l
.
5
7
,
No. 10, pp. 2989
-2996, 2009
.
[3]
Jihak Jung, Wo
o
y
oung Choi, and Jaehoon Choi, “A
SmallWideband Microstrip-fed Monopole Antenna”
,
IE
EE
Micr
owave
And
Wir
e
les
s
Compo
n
ents
L
e
t
t
er
s
, V
o
l. 15
, No
. 10
, p
p
.v703-705, 200
5.
[4]
K. P. R
a
y
,
and
Y. Ranga, “Ultr
awideb
and
Print
e
d E
llip
tical
Monopole Ant
e
nnas”,
IEEE Transa
c
tion
on An
tenn
as
And Propagatio
n,
Vol. 55
, No. 4
,
pp
. 1189-1192
, 2007.
[5]
Joa
nne
Gome
s,
B.
K.
Mishra, “Pe
rfo
rm
ance
Evalu
a
tion o
f
UW
B W
i
reles
s
Link”
,
In
terna
tional Journal of
Information and
Network S
ecurity (
I
JINS)
,
Vol. 1
,
No. 3
,
pp
. 188-1
99, 2012
.
[6]
Jie Xu, Kunming Dong
y
a
Shen, Xiupu Zhang
,
Ke Wu, “A
Compact Disc Ultr
awideBand
(UWB) Antenna
With
Quintuple Band
Rejections”,
I
E
EE An
tennas and
Wirele
ss Propag
ation Letters,
Vol. 11
, pp
. 1517–1
520, 2012
.
[7]
L. Akhoondzad
eh-Asl, M. Far
d
is, A.
Abolgh
asemi, and
G. Dadashzad
eh, “Frequency
and Time Domain
Charac
teris
t
ics
of a Novel
Notch Frequency
UWB Antenna”
, Pr
ogress In
Electr
o
magnetic Research
, Vol. 80, pp.
337–348, 2008
.
[8]
Young Jun Cho,
Ki Hak Ki
m, Dong Hy
uk Choi, Seung Sik Lee, and Seong-Ook
Park, “A
Miniature UWB Planar
Monopole Antenna With 5-GHz Band-Rejectio
n F
ilter and
th
e Tim
e
-Dom
ain
Characterist
ics”,
I
EEE T
r
ansactio
ns
On Antennas
An
d Propagation
,
Vol. 54
, No. 5, p
p
. 1453-1460
, 2
006.
[9]
Shi-Wei Qu,
Jia-Lin Li,
and
Quan Xue
,
A Band-Notched
Ultrawideb
and Printed Monopole Antenna”,
IEE
E
Antennas and
W
i
reless Propagation Letters
, Vol.
5, pp
. 495-498
,
2006.
[10]
R. Sey
e
d Ramin
Emadian, Ch
an
giz G
hobadi, Javad Nourinia, Mi
rHamed Mirmozafar
i,
a
nd Javad Pourahmadazar
,
“
Bandwidth En
hancem
ent o
f
C
P
W
-
Fed Circle-
L
ike Slot
Anten
n
a W
ith Dual B
a
nd-Notched Ch
arac
terist
ic
”
, I
E
EE
Antennas And
W
i
reless
Propagation Letters,
Vol. 11, pp. 543-546
, 2012
.
[11]
Tong Li, Huiqin
g Zhai, Guihong
Li,
Long Li, an
d Changhong Liang
,
“Compact UWB Band Notched Antenna d
e
sign
using interdigital capacitanc
e lo
aded
loop r
e
so
nator”,
I
EEE An
tennas And
Wir
e
less Propagation Letters
, Vol.
11,
pp. 724-727
, 20
12.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
S
SN
:
2
088
-87
08
IJECE
Vol. 5, No. 6, D
ecem
ber
2015 :
1433 –
1440
1
440
[12]
A. Boutejdar
,
A. A. Ibrahim
,
E.
P. Burte, “
A
Com
p
act Multip
le Band-Notch
e
d Planer Antenna with Enhanc
ed
Bandwidth Usin
g Parasiti
c Strip
Lum
p
ed Capa
ci
tors
a
nd DGS-Techniqu
e”,
TELKOMNIKA Indonesian Journal
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BIOGRAP
HI
ES OF
AUTH
ORS
Rekha P Labad
e
has received
her
BE
Degree in
Electron
i
cs in
199
4 from University
of
Pune, (M.S)
ME(Electronics) in 2004
from BAMU, Aurangabad(
M.S),Ind
ia. Presently
,
she ispursuing Ph. D
from
Sy
m
b
iosis Interna
tiona
l Universit
y
.Sh
e
is
an
a
ssista
n
t profe
ssor in
Department Electronics
and Tel
ecom
m
unica
tion at Am
rutvahini co
ll
ege
of Engineering
.
S
h
e has
16 years
of teach
ing
experi
enc
e
. Her
areas
of
inter
e
s
t
are des
i
gn o
f
M
i
cros
trip an
te
nna, Ultr
awideb
and ant
e
nna
an
d
m
i
crowave engi
neering
.
Em
ail:rpl
abad
e
@
gm
ail.com
Dr. S
.
B. Deos
ar
karhas
rec
e
iv
ed
BE Degree
in El
ectron
i
cs
in 198
8 from
Am
ravati Univers
i
t
y
and
his both M. Tech and Doctor
ate Degrees in
th
e
area o
f
Microw
ave Communication in 1990
an
d
2004 respectiv
el
y
from
S.G.G.S. Institute of Engi
neering and T
e
chnolog
y
,
Nanded.He has 23 y
ear
s
of teaching
exp
e
rience
at und
ergr
aduate
and postg
ra
duate
level.
He has
been cred
ited with about 35
research
publications at
th
e National
and Internati
onal level. Cur
r
ently
he
is guid
i
ng fiv
e
Research
S
c
holars
in
th
e a
r
ea of
EM
I
/
EM
C
and Microstrip Antenna Desig
n
.
E-mail: sbdeosar
kar@
y
a
hoo.com
Dr. Nara
yan P
i
s
h
arot
yis
working
as
a profes
s
o
r in Departm
e
nt E
l
ectron
i
cs
and T
e
lecom
m
unicat
ion
at S
y
m
b
iosis Institut
e
of Technol
og
y
.
He has 38
y
ear
s of experi
en
ce. His areas of interest ar
e RFID
Application in B
i
o Medical
Engg
, Altern
ate En
er
g
y
Sources, and
applications of
microprocessor in
Agricultur
e
. At
present h
e
is guiding fiv
e
R
e
sear
ch Scholars.
E-mail: nar
a
y
a
n
p
@sitpune.edu.in
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