Open AccessA Corner‐Fed Microstrip Circular Antenna with Switchable Polarization
Author(s) -
Sung Youngje
Publication year - 2008
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.08.0108.0180
Subject(s) - microstrip antenna , patch antenna , circular polarization , microstrip , pin diode , optics , excited state , polarization (electrochemistry) , materials science , axial ratio , optoelectronics , antenna (radio) , diode , physics , engineering , electrical engineering , chemistry , nuclear physics
In this paper, a design for a novel microstrip antenna with circular polarization diversity is proposed and experimentally investigated. This antenna is excited by a microstrip line, which is located at the corner of a circular patch. The polarization state can be switched electrically by setting a diode to on or off. The novel structure we describe here enables the optimization of the input match for both polarizations. From the measured result, good axial ratios are observed at the operating frequencies.