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A Q-Band dual-mode cavity-backed wideband patch antenna with independently controllable resonances

  • Tao Zhang
  • , Yan Zhang
  • , Shunhua Yu
  • , Wei Hong
  • , Ke Wu
  • Southeast University, Nanjing

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

Abstract

In this paper, a dual-mode cavity-backed patch antenna and a 2×2 array is proposed for Q-band wireless applications. In addition to the original TM01 mode of patch antenna, an independently controllable resonance is introduced by loading the antenna with an inductive via and an annular slot. The bandwidth (return loss<-10 dB) of the antenna element is thus expanded to 12.4% while the bandwidth of the 2×2 array is 12.7%, with a peak gain of 6.57 dBi and 10.6 dBi, respectively. The 2-dB gain bandwidth of the array is wider than 13.95%. Besides, in order to provide a deep understanding of the antenna, a fully physically based circuit model is presented. The circuit simulation and full wave simulation agree well with the measurements.

Original languageEnglish
Title of host publicationISAP 2013 - Proceedings of the 2013 International Symposium on Antennas and Propagation
Pages118-121
Number of pages4
StatePublished - 2013
Externally publishedYes
Event2013 International Symposium on Antennas and Propagation, ISAP 2013 - Nanjing, China
Duration: 23 Oct 201325 Oct 2013

Publication series

NameISAP 2013 - Proceedings of the 2013 International Symposium on Antennas and Propagation
Volume1

Conference

Conference2013 International Symposium on Antennas and Propagation, ISAP 2013
Country/TerritoryChina
CityNanjing
Period23/10/1325/10/13

Keywords

  • cavity backed
  • circuit model
  • dual-mode
  • patch antenna

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