Title :
A Novel Reconfigurable Microstrip Antenna With Switchable Circular Polarization
Author :
Hsu, Shih-Hsun ; Chang, Kai
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX
fDate :
6/29/1905 12:00:00 AM
Abstract :
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
Keywords :
electromagnetic wave polarisation; microstrip antennas; piezoelectric transducers; PET; dielectric perturbers; left-hand circular polarization; piezoelectric transducer; reconfigurable microstrip antenna; right-hand circular polarization; switchable circular polarization; Circuits; Dielectric substrates; Frequency; Microstrip antennas; Piezoelectric polarization; Piezoelectric transducers; Positron emission tomography; Schottky diodes; Slot antennas; Switches; Microstrip antenna; perturbation; piezoelectric transducer (PET); reconfigurable antenna; switchable polarization;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2007.894150
