A Novel Quad-Polarization Agile Patch Antenna

F. Ferrero, C. Luxey, R. Staraj, G. Jacquemod, M. Yedlin, Vincent Fusco

Research output: Contribution to journalArticlepeer-review

69 Citations (Scopus)


In this communication we present a novel polarization-agile microstrip antenna design. To dynamically change the polarization state, the radiating patch is fed by a tunable quasi-lumped coupler. The whole structure can be dynamically altered to radiate electromagnetic waves with vertical linear, horizontal linear, right-handed circular or left-handed circular polarization simply by changing the operating mode of the quasi-lumped coupler. Due to its topology the coupler is simply reconfigured by switching the bias of two varactor diodes via a very simple DC bias circuitry: no additional capacitors or inductors are required. A prototype is fabricated with a 0.762-mm-thick upper layer substrate for the radiating element and a 0.130-mm-thick layer substrate for the coupler circuit, both with the same dielectric material relative permittivity of 2.22. The simulated and measured scattering parameters, the axial ratio in circular radiation-mode and the cross-polarization level in linear mode, the gain and the radiation patterns are presented. The agile polarization capabilities of this new antenna, as demonstrated in this communication, underscore its suitability for modern wireless communications in a multi-path propagation environment.
Original languageEnglish
Pages (from-to)1562-1566
Number of pages5
JournalIEEE Transactions on Antennas and Propagation
Issue number5
Publication statusPublished - Aug 2009

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics


Dive into the research topics of 'A Novel Quad-Polarization Agile Patch Antenna'. Together they form a unique fingerprint.

Cite this