Design of a Quasi-Hemispherical UWB Antenna

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Abstract

This paper proposes a design of three-dimensional antenna for ultrawideband applications. The antenna has dimensions of 58 mm x 58 mm x 76.5 mm and is composed of two identical arms. Each arm consists of a hollow quasi-hemisphere and an inner for it tube. In the simulation, a 50 Ω coaxial cable is employed to feed the antenna in order to assess the change of the antenna performance due to the cable effect. The simulated results show that the antenna is capable of operating in the frequency band from 7 to 32.5 GHz with S11 below -10 dB, while maintaining an omnidirectional radiation pattern. The simulated total efficiency is above 88 % over the entire impedance bandwidth which indicates a good antenna performance. The realized gain varies from 0.8 to 3.1 dBi with frequency.
Original languageEnglish
Title of host publicationAntennas and Propagation in Wireless Communications (APWC), 2016 IEEE-APS Topical Conference on
Number of pages4
Place of PublicationCairns, Australia
PublisherIEEE
Publication dateSep 2016
Edition6th
Pages270-273
ISBN (Print)978-1-5090-0471-3
ISBN (Electronic)978-1-5090-0470-6, 978-1-5090-0469-0
DOIs
Publication statusPublished - Sep 2016
Event2016 International Conference on Electromagnetics in Advanced Applications / IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications - Cairns, Australia
Duration: 19 Sep 201623 Sep 2016
http://www.iceaa-offshore.org

Conference

Conference2016 International Conference on Electromagnetics in Advanced Applications / IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications
Country/TerritoryAustralia
CityCairns
Period19/09/201623/09/2016
Internet address

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