Design of engineered reflectors for radar cross section modification

E. Doumanis, G. Goussetis, G. Papageorgiou, V. Fusco, R. Cahill, D. Linton

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

A technique is proposed for the design of engineered reflectors consisting of doubly periodic arrays printed on thin grounded dielectric substrates that reflect an incoming wave from a given incoming direction to a predetermined outgoing direction. The proposed technique is based on a combination of Floquet theory for propagation in periodic structures and reflect-array principles. A flat surface designed to reflect a TE polarized wave incident at 45 degrees back in the direction of the impinging signal at 14.7 GHz is employed as an example. By means of full-wave simulations, it is demonstrated that the monostatic RCS of a finite reflector is comparable with the specular RCS of a metallic mirror of the same dimensions. It is further shown that comparably high monostatic RCS values are obtained for angles of incidence in the 30 degrees-60 degrees range, which are frequency dependent and thus open opportunities for target localization. A prototype array is fabricated and experimentally tested for validation. The proposed solution can be used to modify the radar cross section of a target. Other potential applications are also discussed.

Original languageEnglish
Pages (from-to)232-239
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Volume61
Issue number1
DOIs
Publication statusPublished - Jan 2013

Keywords

  • radar cross section (RCS)
  • ground plane
  • FSS
  • frequency selective surface (FSS)
  • high impedance surface
  • reflect-array
  • frequency selective surfaces
  • antennas
  • RCS reduction
  • stealth technology
  • impedance surfaces
  • AMC
  • arrays

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