Fan-Type AMC Surface for Broadband Low-RCS Applications

Authors

  • Xueyan Song School of Electronic Engineering Xi’an University of Posts & Telecommunications, Xi’an, 710121, China
  • Lei Chen National Key Laboratory of Antennas and Microwave Technology Xidian University, Xi’an, 710071, China
  • Zehong Yan National Key Laboratory of Antennas and Microwave Technology Xidian University, Xi’an, 710071, China
  • Yanyan Li National Key Laboratory of Science and Technology on Aerospace Intelligent Control Beijing, 100854, China

Keywords:

AMC, broadband, RCS reduction

Abstract

An artificial magnetic conductor (AMC) surface is proposed in this paper to reduce radar cross section (RCS) by more than 10 dB in a broad frequency band. The proposed AMC structure consists of two different units - seven hexagonal circles and Jerusalem cross loaded with four L-type branches, contributing to a wide phase difference (180°±37°) frequency band. To obtain a low RCS value, the two proposed units are arranged in fan-type for the AMC surface. The simulated results show that the RCS can be reduced by more than 10 dB in a broad frequency band from 12.2 to 27 GHz (75.5%). The proposed AMC structure combined by 20×20-unit cells is fabricated and measured in anechoic chamber. Measured results in the band below 18 GHz of the fabricated prototype agree well with the simulated ones, which validates that the proposed AMC surface may be utilized on low-RCS platforms.

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References

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Published

2019-11-01

How to Cite

[1]
Xueyan Song, Lei Chen, Zehong Yan, and Yanyan Li, “Fan-Type AMC Surface for Broadband Low-RCS Applications”, ACES Journal, vol. 34, no. 11, pp. 1645–1652, Nov. 2019.

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