A Fabry-Perot cavity antenna with a non-uniform permittivity superstrate for V-band applications

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Abstract

A high-gain, wideband Fabry-Perot cavity antenna is proposed to operate over almost the whole V-band frequency. The antenna's superstrate is made of multiple different concentric dielectric materials, where the central and outer regions have the highest and lowest permittivity, respectively. The antenna's cavity is excited through a waveguide-fed slot antenna, positioned at a distance of 3.4 mm from the flat superstrate. The 3-dB gain bandwidth extends from 47.9 GHz to 73.0 GHz, which equals a fractional bandwidth of 41%. The peak gain of the antenna is 17.37 dB which occurs at 63.0 GHz. The antenna is compact with a size of 2.7λ0 × 2.7λ0 × 0.19λ0 , where λ0 is the free space wavelength at the center frequency of the operating band (62.45 GHz).
Original languageEnglish
Title of host publicationProceedings of the 2018 IEEE 7th Asia-Pacific Conference on Antennas and Propagation (APCAP)
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages223-224
Number of pages2
ISBN (Electronic)9781538656488, 9781538656471
ISBN (Print)9781538656495
DOIs
Publication statusPublished - 15 Nov 2018
Event2018 IEEE 7th Asia-Pacific Conference on Antennas and Propagation - Auckland, New Zealand
Duration: 5 Aug 20188 Aug 2018

Publication series

Name
ISSN (Print)2381-5523

Conference

Conference2018 IEEE 7th Asia-Pacific Conference on Antennas and Propagation
Abbreviated titleAPCAP
CountryNew Zealand
CityAuckland
Period5/08/188/08/18

Keywords

  • Fabry-Perot antenna
  • high gain
  • non-uniform permistivity
  • resonant cavity antenna
  • sperstrate
  • wideband

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