Enhancing frequency-scanning response of leaky-wave antennas using high-impedance surfaces

Maria Garcia-Vigueras, Jose Luis Gomez-Tornero, George Goussetis, Andrew R. Weily, Y. Jay Guo

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The use of high-impedance surfaces (HISs) to increase the frequency-scanning sensitivity of hollow leaky-wave antennas (LWAs) is presented. The LWA consists of a hollow rectangular waveguide with one of its narrow walls replaced by a partially reflective surface, and it is loaded with a metallodielectric HIS to increase its beam-scanning response. Theoretical results based on a simple transverse equivalent network illustrate the physical mechanism responsible for the improvement, and they are verified by experiments on a prototype working in the 11-16 GHz band.

Original languageEnglish
Pages (from-to)7-10
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume10
DOIs
Publication statusPublished - 2011

Keywords

  • frequency beam scanning
  • guide
  • leaky-wave antennas (LWAs)
  • high-impedance surfaces (HISs)

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