Design of polarization diversity patch antenna based on a compact reconfigurable feeding network

Jeen-Sheen Row, Ming Jyun Hou

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44 Citations (Scopus)


A design of stacked square-ring patch antennas with quadri-polarization diversity is proposed. The polarization switching is realized with a 1-to-4 reconfigurable feeding network composed of a quasi-lumped coupler and PIN diodes. The size of the feeding network is less than 0.01λ02, where λ0 is the free-space wavelength of the operating frequency. In addition, by controlling dc voltages, the operation of the feeding network can be varied among four different modes. The performances of the stacked patch antenna and the reconfigurable feeding network are respectively exhibited. A prototype that integrates the feeding network into the inner slot of the lower square-ring patch of the stacked patch antenna is designed and constructed. The prototype can provide dual orthogonal linear polarizations and dual orthogonal circular polarizations at 1.98 GHz. Details of the experimental results for the prototype are shown.

Original languageEnglish
Article number2341271
Pages (from-to)5349-5352
Number of pages4
JournalIEEE Transactions on Antennas and Propagation
Issue number10
Publication statusPublished - 2014 Oct 1


All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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