Wide scanning angle LWA based on DIL with H-shaped grooves

Du Juan Wei, Jian Ying Li, Jie Liu, Rui Xu, Guang Wei Yang

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

A dielectric image line (DIL)-based leaky wave antenna (LWA) with H-shaped grooves is proposed in this paper. By periodically carving a set of H-shaped grooves in the ground of the DIL, infinite space harmonics are excited, and the proposed antenna works with n = −1 order mode. The H-shaped radiator can effectively eliminate open stopband (OSB). Over the operating band from 11.1 GHz to 15 GHz, the beam of the proposed antenna scans widely from −72° to 31° (including the broadside) with the realized gain from 9.7 dBi to 12.9 dBi. A prototype is fabricated and measured, which testifies the design theory and the simulation results.

Original languageEnglish
Pages (from-to)2608-2613
Number of pages6
JournalMicrowave and Optical Technology Letters
Volume60
Issue number11
DOIs
StatePublished - Nov 2018

Keywords

  • dielectric image line
  • H-shaped groove
  • leaky wave antenna
  • open stopband
  • wide scanning angle

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