Vol. 15

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2010-07-03

T-Strip Fed Patch Antenna with Reconfigurable Polarization

By Shun-Yun Lin, Yuan-Chih Lin, and Jin-Yan Lee
Progress In Electromagnetics Research Letters, Vol. 15, 163-173, 2010
doi:10.2528/PIERL10051801

Abstract

In this paper, right handed circular polarization (RHCP), left handed circular polarization (LHCP), and linear polarization (LP) reconfigurable antenna is proposed by reconfigured fabrication. The proposed antenna comprising of two square patches, a T-stripline, and a finite ground plane is designed for HiperLAN2 5 GHz operation. The patches are symmetrically placed along the vertical portion of T-strip and coupling fed by the strip. The planar structure is in LP sense while CP sense is achieved as the structure bent. For the bent structure, the vertical and horizontal portions of T-strip not only respectively feed the coplanar patch but also provide a 90° phase difference between the feeds. Two orthogonal E-fields with quadrature are excited to achieve CP sense. Moreover, the switching between RHCP and LHCP is easily achieved by folding the structure along opposite vertical edge of T-strip. Instead of electrically controlling switches, the polarization reconfiguration can be manually constructed.

Citation


Shun-Yun Lin, Yuan-Chih Lin, and Jin-Yan Lee, "T-Strip Fed Patch Antenna with Reconfigurable Polarization," Progress In Electromagnetics Research Letters, Vol. 15, 163-173, 2010.
doi:10.2528/PIERL10051801
http://jpier.org/PIERL/pier.php?paper=10051801

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