Planar ultra wideband antennas with rejected sub-bands

Abbosh, Amin M. (2007). Planar ultra wideband antennas with rejected sub-bands. In: Akkaraekthalin, P., Angkew, T. and Roeksabutr, A., Proceedings of Asia-Pacific Microwave Conference 2007. 2007 Asia-Pacific Microwave Conference (APMC2007), Bangkok, Thailand, (441-444). 11-14 December 2007. doi:10.1109/APMC.2007.4554990

Author Abbosh, Amin M.
Title of paper Planar ultra wideband antennas with rejected sub-bands
Conference name 2007 Asia-Pacific Microwave Conference (APMC2007)
Conference location Bangkok, Thailand
Conference dates 11-14 December 2007
Proceedings title Proceedings of Asia-Pacific Microwave Conference 2007
Journal name 2007 Asia Pacific Microwave Conference, Vols 1-5
Place of Publication Piscataway, NJ, United States
Publisher IEEE
Publication Year 2007
Sub-type Fully published paper
DOI 10.1109/APMC.2007.4554990
ISBN 1424407494
Editor Akkaraekthalin, P.
Angkew, T.
Roeksabutr, A.
Start page 441
End page 444
Total pages 4
Collection year 2008
Language eng
Abstract/Summary A simple method for the design of a coplanar waveguide-fed ultra wideband antenna is presented. The proposed antenna has a rejection capability for a certain undesired sub-band used by other communication systems. The proposed antenna has a uniplanar configuration. The radiating element and the ground plane of the antenna are in a shape of half a circle. Two methods for rejecting the undesired sub-band are presented. In one method, a tuning strip is used at the bottom layer of the antenna facing the radiator at the feeding point, whereas in the other method a tuning slot is made at the radiator. The length of the tuning element can be used to control centre of the rejected sub-band. Results of simulations for the two methods show that the designed antennas have a bandwidth from 3.1 GHz to more than 10.6 GHz with near omnidirectional characteristics. The designed antennas have a radiation efficiency which is higher than 90% over the whole passband. The gain of the antenna at the rejected sub-band is as low as -5 dB proving the filtering characteristics of the antenna at that band.
Subjects E1
291701 Antenna Technology
700302 Telecommunications
Keyword Planar antenna
Coplanar waveguide
Ultra wideband
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

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