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A Novel Reconfigurable Microstrip Antenna With Switchable Circular Polarization

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2 Author(s)
Shih-Hsun Hsu ; Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX ; Kai Chang

This letter presents a novel reconfigurable microstrip antenna with switchable circular polarization using a piezoelectric transducer (PET). Two dielectric perturbers attached to the PETs are used to create perturbations for the desired circular polarizations. Right-hand circular polarization (RHCP) or left-hand circular polarization (LHCP) can be produced by pulling down one of the PETs and lifting up the other one. The full-wave simulation and measured results show good agreement. An axial ratio of less than 1 dB is observed

Published in:

IEEE Antennas and Wireless Propagation Letters  (Volume:6 )