Distribution profiles for transverse permittivity gradient superstrates in extremely wideband resonant cavity antennas

Raheel M. Hashmi, Karu P. Esselle

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

1 Citation (Scopus)

Abstract

Transverse permittivity gradients in superstrates of extremely wideband resonant cavity antennas (RCAs) require the dielectric constant of the superstrate to change from a high value in the centre, to a low value at the edges. This paper investigates the performance of quantized permittivity gradients in such superstrates in comparison to continuous permittivity gradients. Continuous gradients are associated with high manufacturing complexity and increased cost. In this paper, two quantized permittivity distribution profiles are constructed, each with only three quantized steps to achieve comparable performance to that of piecewise-linear continuous distribution profile, while offering increased manufacturing ease. Numerical results are presented to validate the proposed concept.

Original languageEnglish
Title of host publication2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016 - Proceedings
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1847-1848
Number of pages2
ISBN (Electronic)9781509028863
DOIs
Publication statusPublished - 25 Oct 2016
Event2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016 - Fajardo, Puerto Rico
Duration: 26 Jun 20161 Jul 2016

Other

Other2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016
CountryPuerto Rico
CityFajardo
Period26/06/161/07/16

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