Broadband circularly polarized patch antenna for small satellites applications

Yuhui Zhang, Jianzhou Li, Steven Gao, Gao Wei, Jiadong Xu

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

3 Scopus citations

Abstract

A novel broadband circularly polarized annular patch antenna is presented in this paper. The antenna consists of two annular ring patches which serve as an excitation patch and a parasitic patch, respectively. To produce circular polarization, small perturbations in the shape of triangles are loaded on the patches. To validate the concept, a prototype antenna at S band is designed and fabricated. The measured results confirm the antenna is able to achieve good impedance match and low axial ratio values over a wide range of frequencies. The simulated results agree well with measured results, which show an impedance bandwidth (S11<-10dB) of 19.5%, and an axial ratio bandwidth (AR<3dB) of 10.9%. The antenna has a compact size and low cost, thus useful for small satellite data downlink and Telemetry Tracking and Command (TTC) applications.

Original languageEnglish
Title of host publicationProceedings of the 2012 8th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2012
DOIs
StatePublished - 2012
Event2012 8th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2012 - Poznan, Poland
Duration: 18 Jul 201220 Jul 2012

Publication series

NameProceedings of the 2012 8th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2012

Conference

Conference2012 8th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2012
Country/TerritoryPoland
CityPoznan
Period18/07/1220/07/12

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