A Dual-Band Polarization Reconfigurable Antenna for WLAN Systems

作者：Qin, Pei-Yuan^*; Guo, Y. Jay; Ding, Can

来源：IEEE Transactions on Antennas and Propagation, 2013, 61(11): 5706-5713.

DOI：10.1109/TAP.2013.2279219

• Aperture-coupled
• dual-band antennas
• microstrip antennas
• polarization diversity
• reconfigurable antennas

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 and 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.

• 出版日期2013-11
• 单位CSIRO; 西安电子科技大学