Increasing the gain of a semicircular slot UWB antenna using an FSS reflector

Y. Ranga*, K. P. Esselle, L. Matekovits, S. G. Hay

*Corresponding author for this work

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

14 Citations (Scopus)

Abstract

In this paper we demonstrate the gain enhancement of a semicircular slot antenna using a multilayer frequency-selective surface (FSS). A theoretical analysis of the FSS with a UWB semicircular slot antenna is presented. The multilayer FSS provides an appropriate reflection phase to act as a reflector and is able to enhance the gain of the slot antenna. Simulations show a linear phase response from 3.5 GHz to 12 GHz that is sufficient for ultra wideband operation. A significant improvement of 3 to 4 dB gain over the whole frequency range is demonstrated. The composite antenna has a theoretical gain of 8 dBi and a very small maximum gain variation of ±1.5 dB over the 3.5 to 10 GHz frequency range. Its compact configuration provides flexibility for mounting the reflector close to the slot antenna and makes it more suitable for modern UWB devices.

Original languageEnglish
Title of host publicationProceedings of the 2012 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC'12
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages478-481
Number of pages4
ISBN (Print)9781467304054
DOIs
Publication statusPublished - 2012
Event2012 2nd IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2012 - Cape Town, South Africa
Duration: 2 Sep 20127 Sep 2012

Other

Other2012 2nd IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2012
CountrySouth Africa
CityCape Town
Period2/09/127/09/12

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