Vol. 104

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2021-09-22

Design and Analysis of Polarization-Insensitive Broadband Microwave Absorber for Perfect Absorption

By Sudha Malik, Mondeep Saikia, Aditi Sharma, Gaganpreet Singh, Janakrajan Ramkumar, Puneet Kumar Mishra, and Kumar Vaibhav Srivastava
Progress In Electromagnetics Research M, Vol. 104, 213-222, 2021
doi:10.2528/PIERM21062702

Abstract

A simple design configuration of a broadband polarization-insensitive double-layered microwave absorber is presented here. The proposed absorber is designed using indium tin oxide (ITO) based on thin resistive film. The novelty of structure is to achieve large absorption bandwidth with more than 99% absorption. The proposed structure is modeled for 20 dB absorption bandwidth at normal incidence from 6.3 GHz to 14.2 GHz spanning over C-band, X-band, and Ku-band. Under oblique incidence the proposed structure is stable up to 60˚ for TE polarization and 45˚ for TM polarization. To understand the operating principle of absorption of proposed structure, an equivalent circuit is derived, and surface current distribution is also studied. A fabricated sample is measured, which validates our simulation.

Citation


Sudha Malik, Mondeep Saikia, Aditi Sharma, Gaganpreet Singh, Janakrajan Ramkumar, Puneet Kumar Mishra, and Kumar Vaibhav Srivastava, "Design and Analysis of Polarization-Insensitive Broadband Microwave Absorber for Perfect Absorption," Progress In Electromagnetics Research M, Vol. 104, 213-222, 2021.
doi:10.2528/PIERM21062702
http://www.jpier.org/PIERM/pier.php?paper=21062702

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