Dual circularly-polarized patch antenna using even and odd feed-line modes

Adam Narbudowicz, Xiulong Bao, Max J. Ammann

Research output: Contribution to journalArticlepeer-review

Abstract

This communication proposes a new patch antenna with dual circularly polarized capability at 2.575 GHz. The design exploits the even and odd modes in a coplanar waveguide transmission line and enables simultaneous right- and left-handed circular polarization, with two individual excitation ports. A patch antenna is fed by multimode transmission line and the advantages and disadvantages are discussed. A prototyped antenna realized up to 20 dB isolation between ports with S21 < -10B bandwidth of 87 MHz. Realized gains for the two modes of operation are 5.77 and 7.23 dBic. The proposed structure is compact and easy to manufacture.

Original languageEnglish
Article number6542713
Pages (from-to)4828-4831
Number of pages4
JournalIEEE Transactions on Antennas and Propagation
Volume61
Issue number9
DOIs
Publication statusPublished - 2013

Keywords

  • Antenna feeds
  • circular polarization
  • dual polarization
  • microstrip antennas

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