A dual-band polarization reconfigurable antenna for WLAN systems

Pei Yuan Qin, Y. Jay Guo, Can Ding

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

A new microstrip dual-band polarization reconfigurable antenna is presented for wireless local area network (WLAN) systems operating at 2.4 and 5.8 GHz. The antenna consists of a square microstrip patch that is aperture coupled to a microstrip line located along the diagonal line of the patch. The dual-band operation is realized by employing the TM10 and TM30 modes of the patch antenna. Four shorting posts are inserted into the patch to adjust the frequency ratio of the two modes. The center of each edge of the patch is connected to ground via a PIN diode for polarization switching. By switching between the different states of PIN diodes, the proposed antenna can radiate either horizontal, vertical, or 45° linear polarization in the two frequency bands. Measured results on reflection coefficients and radiation patterns agree well with numerical simulations.

Original languageEnglish
Article number6583979
Pages (from-to)5706-5713
Number of pages8
JournalIEEE Transactions on Antennas and Propagation
Volume61
Issue number11
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Aperture-coupled
  • Dual-band antennas
  • Microstrip antennas
  • Polarization diversity
  • Reconfigurable antennas

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