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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)


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
Publication statusPublished - 2011


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


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