Investigation of low-profile fresnel zone plate antennas

S. M. Stout-Grandy, A. Petosa, I. V. Minin, Oleg V. Minin, J. S. Wight

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This article presents low-profile configurations of the Fresnel zone plate antenna at Ka-band. The investigation involved progressively reducing the focal distance of the antenna through simulations and observing the effect on the directivity, radiation patterns, and aperture efficiency. The number of metal zones was also varied in the simulations. It was found that focal distances below 0.75λ yielded little more directivity than the feed itself. With a single zone, the 1.25λ focal distance achieved the highest overall aperture efficiency of 24%, which was a significant improvement over the larger focal distance cases. Measurements were performed to verify the simulated results.

Original languageEnglish
Pages (from-to)2039-2043
Number of pages5
JournalMicrowave and Optical Technology Letters
Volume50
Issue number8
DOIs
Publication statusPublished - Aug 2008
Externally publishedYes

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Keywords

  • Fresnel zone plate antenna
  • Low-profile

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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