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Wideband radar cross-section reduction of a microstrip antenna using slots

Published online by Cambridge University Press:  07 August 2018

Jiakai Zhang*
Affiliation:
School of Electronics and Information, Northwestern Polytechnic University, Xi'an 710129, China
Haixiong Li
Affiliation:
School of Electronics and Information, Northwestern Polytechnic University, Xi'an 710129, China
Qi Zheng
Affiliation:
School of Electronics and Information, Northwestern Polytechnic University, Xi'an 710129, China
Jun Ding
Affiliation:
School of Electronics and Information, Northwestern Polytechnic University, Xi'an 710129, China
Chenjiang Guo
Affiliation:
School of Electronics and Information, Northwestern Polytechnic University, Xi'an 710129, China
*
Author for correspondence: Zhang JiaKai, E-mail: zjkyikun@mail.nwpu.edu.cn

Abstract

In this study, a new microstrip patch antenna with wideband radar cross-section (RCS) reduction is presented. The RCS of the proposed antenna was reduced by subtracting the current-direction slots of the patch, with the radiation performance sustained not only for the current-direction subtraction, but also for the no modification in the ground plane. Modified and reference antenna were fabricated and measured. The simulation and measurement results showed that the modified antenna reduced the in-band and out-band RCS simultaneously with no detriment to the radiation performance. In the frequency band from 3.9 to 8.1 GHz, the RCS of the modified antenna was reduced in the whole band compared with the RCS of the reference antenna. The maximum RCS reduction was 7 dB at a frequency of 6.7 GHz.

Type
Research Papers
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2018 

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References

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