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

Volume

6

fYear

2007

fDate

6/29/1905 12:00:00 AM

Firstpage

160

Lastpage

162

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;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2007.894150

Filename

4154654