Planar Reactively Loaded Array Antenna with Flat-Top Radiation Pattern Characteristics

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Abstract

This paper presents a novel antenna array structure featuring a flat-top symmetric two-dimensional radiation pattern. The radiating structure consists of an active antenna surrounded by reactively loading elements. The flat-top radiation pattern is achieved by properly tuning the reactive loads, which are realized as metal waveguides filled with a homogeneous dielectric material and terminated on a short circuit. The reactance of the parasitic elements is modulated by controlling the length of the waveguides. An antenna array with 11×11 radiating elements has been designed and analyzed. The optimized structure exhibits a [-25°; 25°] flat-top radiation pattern, supports two polarizations, and is inherently matched.

Original languageEnglish
Title of host publication2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers
Pages2091-2092
Number of pages2
ISBN (Electronic)9781728166704
DOIs
Publication statusPublished - 5 Jul 2020
Event2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Virtually, Toronto, Canada
Duration: 5 Jul 202010 Jul 2020

Conference

Conference2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020
CountryCanada
CityVirtually, Toronto
Period5/07/2010/07/20

Keywords

  • Array antenna
  • flat-top radiation pattern
  • reactive surface

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