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An UWB dual polarized microstrip fed L-shape slot antenna

Published online by Cambridge University Press:  10 February 2015

Raghupatruni Venkatsiva Ram Krishna ,
Raj Kumar  and
Nagendra Kushwaha
Raghupatruni Venkatsiva Ram Krishna
Affiliation:
Department of Electronics, DIAT (Deemed University), Pune 411025, India
Raj Kumar*
Affiliation:
Department of AE, ARDE, Pashan, Pune 411021, India
Nagendra Kushwaha
Affiliation:
Department of Electronics, DIAT (Deemed University), Pune 411025, India
*
Corresponding author:R. Kumar Email: [email protected]
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Abstract

In this paper, a microstrip fed, L-shape slot antenna for dual polarization is proposed. The two arms of the slot generate electric fields of orthogonal polarizations. By properly sectioning the slot and the feed line, ultra wideband (UWB) behavior is obtained. The measured impedance bandwidth (S11< −10 dB) is more than 8.6 GHz (112%) and 8.2 GHz (104%) for Port 1 and Port 2, respectively. The measured isolation is better than 25 dB over most of the band. The aperture field distribution justifies the dual polarized nature. A modified version which implements a band-notch over 5.1–5.85 GHz wireless local area network (WLAN) band is also presented. With a compact, single substrate design, the antenna can be useful in MIMO transmission systems, polarimetric UWB radar, high performance microwave imaging, and other future wireless communications devices.

Keywords

Slot antennaMicrostrip feedDual polarizationUWB antenna
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Issue 2 , March 2016 , pp. 363 - 368
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

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