Novel Design of Ultrabroadband Radar Cross Section Reduction Surfaces Using Artificial Magnetic Conductors

Anuj Y. Modi, Constantine Balanis, Craig R. Birtcher, Hussein Shaman

Research output: Contribution to journalArticlepeer-review

128 Scopus citations

Abstract

A novel technique for designing ultrabroadband radar cross section (RCS) reduction surfaces using artificial magnetic conductors (AMCs) is proposed in this paper. This technique overcomes the fundamental limitation of the conventional checkerboard design where the reflection phase difference of (180±37)° is required to achieve 10-dB RCS reduction. Initially, a planar surface for broadband RCS reduction is designed with two properly selected AMCs in a blended checkerboard architecture. A 10-dB RCS reduction is observed for more than 83% of the bandwidth (3.9-9.45 GHz) with this blended checkerboard design. After modifying the blended checkerboard design using the proposed novel technique, the 10-dB RCS reduction bandwidth increased to 91% fractional bandwidth (3.75-10 GHz) as the criteria of (180 ± 37)° reflection phase difference is no longer required. Measured data show an excellent agreement between the predicted, simulated, and measured data. Bistatic performance of the surface at various frequencies is also presented. Key steps for designing ultrabroadband RCS reduction checkerboard surface are summarized.

Original languageEnglish (US)
Article number7997919
Pages (from-to)5406-5417
Number of pages12
JournalIEEE Transactions on Antennas and Propagation
Volume65
Issue number10
DOIs
StatePublished - Oct 2017

Keywords

  • Array theory
  • artificial magnetic conductor (AMC)
  • broadband
  • checkerboard
  • dual band
  • electromagnetic band gap
  • novel checkerboard
  • radar cross section (RCS)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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