Four-port balanced antenna feeding network for switchable polarizations and stable Tx/Rx isolation characteristics

Han Lim Lee, Dong Hoon Park, Hyun Sung Tae, Moon Que Lee, Jong Won Yu

Research output: Contribution to journalArticlepeer-review

Abstract

A new four-port balanced antenna feeding network for switchable polarizations and high transmit/receive (Tx/Rx) isolation characteristics is presented. The proposed structure is configured by two switching mode hybrid matrices which consist of two 3-dB couplers and two SP4T switches, two directional couplers, and Wilkinson dividers. By controlling impedances of the switching mode hybrid matrices, different types of polarizations such as right-handed circular polarization, left-handed circular polarization, vertical polarization, and horizontal polarization can be generated with stable Tx/Rx isolation characteristics regardless of antenna impedance variations.

Original languageEnglish
Pages (from-to)17-23
Number of pages7
JournalMicrowave and Optical Technology Letters
Volume56
Issue number1
DOIs
StatePublished - Jan 2014

Keywords

  • Tx/Rx isolation
  • antenna feeding network
  • reconfigurable antenna
  • reconfigurable feeding network

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