CPW fed Wide-Band Printed Omnidirectional Antenna Akshay Jain, Pramod Kumar Verma, V K Singh, Mahakar Singh
DEAL, DRDO Email:
[email protected]
Abstract A small wideband CPW-fed monopole antenna for SDR mobile communication system has been developed. The antenna has a wide bandwidth ranging from 800 MHz to 3000
MHz
for
Sff
-fO
2: 772.375[ OMHz 3: 4: 5:
40.00
1.00B 50GHz 2.387 75GHz 3.000 00 GHz
·3.544 ·10.16 ·16.89 ·10.17 ·9.095
dB dB dB dB dB
30.00
20.00
10.00
0.00
·10.00
�
2
"\V����1-/ 4'
·20.00
·30.00
·40.00
·50.00 Chl: Start 500.000 MHz
-
-
--
- - -
Stop 3.00000GHz
Fig 4 (a): Measured Radiation pattern of proposed antenna at 1000MHz
Fig 3. Measured Return Loss Plot
Measured radiation patterns of
proposed antenna at
1000,1500, 2000,3000 MHz are shown in figure 4. seen the radiation
As
patterns in the azimuth plane (x-y
plane) are omni-directional, especially for the lower frequencies.
x-y plane
(b) y-z plane
y-z plane
(c)
x-y plane
x-y plane
(d) y-z plane
x-y plane
Fig 4: Measured Radiation pattern of proposed antenna at (b) 1500MHz, (c) 2000 MHz, (d) 3000MHz
4. Conclusion In this paper, a simple monopole antenna
with
wideband impedance and pattern bandwidth has been developed and tested. The impedance bandwidth and radiation patterns of the antenna have been measured and presented.
The designed antenna has a simple
configuration and is easy
to fabricate which make it
suitable for various mobile communication applications, antenna is capable of supporting Tactical SDR, GSM, IMT-2000,
UMTS
WiBro,
WLAN,
and
DMB
sincere
gratitude
simultaneously.
5. Acknowledgement The
authors express
their
and
thanks to Director DEAL, Group Director ( MMW Systems), Associate Group Director ( MMW System) for their guidance and kind permission to publish this work.
6. References [1] Y.Jeeand,y'-M.Seo,"Triple-bandCPW fed compact monopole
antennas
for
GSMlPCS/DCS/WCDM
Applications" ELECTRONICS LETTERS 23rd April 2009 Vol.45 No. 9 [2]
Qing-QiPei,
andSaCdZouhdi
"
Cheng-WeiQiu, Hybrid
Shaped
MICROWAVE
Antenna",
TECHNOLOGY
LETTERS
AND Vol.49,
TaoYuan,
Ultra-Wideband OPTICAL
No. 10,
October
2007 [3] Jihak Jung, Kyungmoon Seol, Wooyoung Choi, and Jaehoon Choi," A Wideband Monopole Antenna For SDR And UWB Applications " Proceeding of the SDR 05 Technical Conference and Product Exposition [4] K. L. Wong, L. C. Chou, and H. T. Chen," Ultra wideband
metal-plate
monopole
antenna
for
laptop
application", Microw. Opt. Technol. Lett., Vol. 43, pp. 384-386, 2004. [5] M.Koohestani and M. Golpour, "Very ultra-wideband printed
CPW-fed
slot
antenna",
ELECTRONICS
LETTERS 8th October 2009 Vol.45 No.21 [6]
Ansoft
High
Frequency
(HFSS), Ansoft Corporation
Structure
Simulation
