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Quasi-self-complementary ultra-wideband antenna with band rejection characteristics

Published online by Cambridge University Press:  03 April 2018

Rajarshi Sanyal ,
Partha Pratim Sarkar  and
Santosh Kumar Chowdhury
Rajarshi Sanyal*
Affiliation:
Department of Electronics & Communication Engineering, M.C.K.V Institute of Engineering, Howrah, West Bengal, India
Partha Pratim Sarkar
Affiliation:
Department of Engineering and Technological Studies (DETS), University of Kalyani, Nadia, West Bengal, India
Santosh Kumar Chowdhury
Affiliation:
IEEE, West Bengal, India
*
Corresponding author: Rajarshi Sanyal Email: rajarshi.sanyal1972@gmail.com
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Abstract

This article presents a compact novel quasi-self-complementary semi-octagonal-shaped antenna for ultra-wideband (UWB) application. The proposed novel structure is fed by a microstrip line where different rectangular truncation is etched to the ground plane as an impedance matching element, which results for much wider impedance bandwidth (VSWR<2) from 2.9 to 20 GHz. In order to obtain band-notched characteristics at 5.5 GHz, an open-ended, quarter wavelength, spiral-shaped stub is introduced in the vicinity of the truncated part of the ground plane. An equivalent circuit model is adopted to investigate the band rejection characteristics of the ground plane stub. Sharpness of the rejection band can be controlled by maintaining the gap between stub resonator and the slotted periphery of ground plane. The proposed antenna design is validated by experimental measurements.

Keywords

Antenna designModeling and measurementsComputer-aided design
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 10 , Issue 3 , April 2018 , pp. 336 - 344
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2018 

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References

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