1D-leaky wave antenna employing parallel-plate waveguide loaded with PRS and HIS

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

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

A new type of one-dimensional leaky-wave antenna (LWA) with independent control of the beam-pointing angle and beamwidth is presented. The antenna is based on a simple structure composed of a bulk parallel-plate waveguide (PPW) loaded with two printed circuit boards (PCBs), each one consisting of an array of printed dipoles. One PCB acts as a partially reflective surface (PRS), and the other grounded PCB behaves as a high impedance surface (HIS). It is shown that an independent control of the leaky-mode phase and leakage rate can be achieved by changing the lengths of the PRS and HIS dipoles, thus resulting in a flexible adjustment of the LWA pointing direction and directivity. The leaky-mode dispersion curves are obtained with a simple Transverse Equivalent Network (TEN), and they are validated with three-dimensional full-wave simulations. Experimental results on fabricated prototypes operating at 15 GHz are reported, demonstrating the versatile and independent control of the LWA performance by changing the PRS and HIS parameters.

Original languageEnglish
Pages (from-to)3687-3694
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Volume59
Issue number10
DOIs
Publication statusPublished - Oct 2011

Keywords

  • design
  • artificial magnetic conductors (AMC)
  • FSS
  • leaky-wave antennas (LWA)
  • groove guide
  • frequency selective surfaces (FSS)
  • millimeter waveband
  • partially reflective surfaces (PRS)
  • high impedance surface (HIS)
  • electromagnetic bandgap structures (EBG)
  • leaky
  • strip
  • planar technology
  • periodic surfaces
  • printed circuit technology

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