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Radiation characteristics of microstrip antenna on frequency selective surface absorbing layer

Published online by Cambridge University Press:  03 December 2020

Ashish Raj Open the ORCID record for Ashish Raj [Opens in a new window]  and
Nisha Gupta
Ashish Raj*
Affiliation:
Department of Electronics and Communication Engineering, Birla Institute of Technology, Mesra, Ranchi, India
Nisha Gupta
Affiliation:
Department of Electronics and Communication Engineering, Birla Institute of Technology, Mesra, Ranchi, India
*
Author for correspondence: Ashish Raj, E-mail: [email protected]
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Abstract

The radiation characteristics of the microstrip antenna (MSA) on the frequency selective surface (FSS) based absorbing layer is presented in this paper. It is observed that an absorbing layer placed between the MSA configuration and the ground plane helps in controlling the radiation characteristics of the antenna. It not only reduces the back lobe but also reduces the beamwidth and gain of the antenna simultaneously. This is because the absorbing layer absorbs some amount of power radiated by the antenna in both forward and backward directions. The proposed design is simulated using Ansys HFSS electromagnetic simulation software and the results are validated by comparing it with the results obtained from the equivalent circuit approach as well as experimental results. The effect of absorber on radiation characteristics of the radiator demonstrates its potential use in suppressing the radiation from the printed circuit board traces.

Keywords

Antenna beamwidthEM absorberfrequency selective surfacemicrostrip antenna
Type
Antenna Design, Modelling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 13 , Issue 9 , November 2021 , pp. 962 - 968
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Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press in association with the European Microwave Association

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