Dual-band slot antenna design with a thin cavity

Chaoping Hsieh, Ta Yeh Lin, Da Chiang Chang, Chichang Hung, Tsenchieh Chiu

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

Abstract

A design of dual-band cavity-backed slot antenna is presented for GPS and S-band radar applications. In the design, a very thin cavity (0.017 λ0 in thickness at 1.575 GHz) is used to achieve unidirectional radiation. The dual-band responses of the antenna are excited by the slot resonance at 1.575 GHz and waveguide transition effect at 2.4 GHz. Even with very small cavity thickness, reasonable impedance bandwidths are obtained as 1.6% (26 MHz) at 1.575 GHz and 8.4% (203 MHz) at 2.4 GHz. The proposed slot can also be loaded with a spurline to adjust the antenna centre frequency and the phase of the radiated field. All designs in this paper have been validated with experiments. Satisfactory results have been obtained.

Original languageEnglish
Title of host publication2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages207-208
Number of pages2
ISBN (Electronic)9781509028863
DOIs
StatePublished - 25 Oct 2016
Event2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016 - Fajardo, Puerto Rico
Duration: 26 Jun 20161 Jul 2016

Publication series

Name2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016 - Proceedings

Conference

Conference2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016
Country/TerritoryPuerto Rico
CityFajardo
Period26/06/161/07/16

Keywords

  • dual-band
  • slot antenna
  • spurline

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