Focus-scanning leaky-wave antenna with electronically pattern-tunable scatterers

Yasuaki Monnai, Hiroyuki Shinoda

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


A focus-scanning leaky-wave antenna is proposed. It is based on evanescent wave scattering by electronically pattern tunable scatterers fabricated of fine cascade connections of field effect transistors (FETs). The focus is tailored by switching the FETs so that numbers of the scattered waves cause constructive interference at the target point. Our prototype achieved focus-scanning at 2.4 GHz. The proposed antenna can be used as a very low-cost and lightweight phased array especially suitable to indoor use.

Original languageEnglish
Article number5752228
Pages (from-to)2070-2077
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Issue number6 PART 2
Publication statusPublished - 2011 Jun
Externally publishedYes


  • Evanescent waves
  • focus-scanning
  • focused antennas
  • leaky-wave antennas
  • phased arrays
  • reconfigurable microstrip arrays

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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