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Super wideband antenna with single band suppression

Published online by Cambridge University Press:  04 June 2015

Murli Manohar ,
Rakhesh Singh Kshetrimayum  and
Anup Kumar Gogoi
Murli Manohar
Affiliation:
Department of Electronics and Communications Engineering, NIT Goa 403 401, India
Rakhesh Singh Kshetrimayum*
Affiliation:
Department of Electronics and Electrical Engineering, IIT Guwahati, Assam 781039, India. Phone: +913612582514
Anup Kumar Gogoi
Affiliation:
Department of Electronics and Electrical Engineering, IIT Guwahati, Assam 781039, India. Phone: +913612582514
*
Corresponding author: R.S. Kshetrimayum Email: krs@iitg.ernet
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Abstract

In this paper, a band-notched compact printed monopole super wideband (SWB) antenna has been designed and fabricated. The SWB antenna composed of a radiating patch with a 50 Ω triangular tapered feed line which is connected through a feed region, and a chamfered ground plane (CGP), that covers the frequency band from 0.9–100 GHz (ratio bandwidth of 111.1:1) with a reflection coefficient |S11| < −10 dB, except in the notched band of 4.7–6 GHz for Wireless local area network IEEE 802.11a and HIPERLAN/2 WLAN band. To realize the band notch characteristics a C-shape parasitic element is employed near the CGP etched with two symmetrical L-slots and placed under the radiating patch. Proposed antenna structure occupies a relatively small space (30 × 40 × 0.787 mm3) and achieved much wider impedance bandwidth as well as higher gain compared with the existing ultra wideband and SWB antennas.

Keywords

Band-notch functionLarge impedance bandwidthSuper wideband (SWB) antennaTriangular tapered microstrip feed line
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 1 , February 2017 , pp. 143 - 150
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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