Title :
A circularly polarized microstrip antenna using a crossed-slot feed
Author :
Iwasaki, H. ; Kawabata, K. ; Yasukawa, K.
Author_Institution :
Toshiba Res. & Dev. Center, Kawasaki, Japan
Abstract :
A simple configuration using a crossed-slot feed with a single microstrip line or a triplate line without a 90 degrees branch hybrid coupler to obtain the required phase shift is proposed. Measurement results on this circularly polarized microstrip antenna are presented. By using the crossed-slot feed method, a microstrip antenna with an axial ratio of less than 2 dB in a wide angle range was obtained. From these results, it was verified that circular polarization operation can be obtained by the proposed method.<>
Keywords :
antenna feeders; electromagnetic wave polarisation; microstrip antennas; microwave antenna arrays; antenna arrays; axial ratio; circular polarization; circularly polarized microstrip antenna; crossed-slot feed; measurement results; microstrip line; phase shift; triplate line; Antenna feeds; Antenna measurements; Antenna radiation patterns; Aperture antennas; Microstrip antenna arrays; Microstrip antennas; Optical polarization; Patch antennas; Resonant frequency; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115231
