Title :
Radiation properties of microstrip array antenna fed by radial line
Author :
Haneishi, M. ; Saito, S.
Author_Institution :
Dept. of Electr. Eng., Saitama Univ., Japan
Abstract :
The authors present an array antenna which excites a singly fed circularly polarized microstrip antenna via a low-loss radial waveguide. In order to check the performance of this antenna, some planar arrays were fabricated and tested at the SHF band. Satisfactory performance was obtained in both radiation pattern and directivity gain. This type of array demonstrated high-efficiency performance (approximately 90% aperture efficiency). It was confirmed that this type of antenna can be a useful model of a circularly polarized planar antenna.<>
Keywords :
antenna feeders; antenna radiation patterns; microstrip antennas; microwave antenna arrays; microwave measurement; SHF band; aperture efficiency; circular polarisation; directivity gain; low-loss radial waveguide; microstrip array antenna; planar antenna; planar arrays; radial line antenna feeder; radiation pattern; radiation properties; Antenna arrays; Apertures; Large-scale systems; Microstrip antenna arrays; Microstrip antennas; Performance loss; Phased arrays; Planar arrays; Satellite broadcasting; Testing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1991. AP-S. Digest
Conference_Location :
London, Ontario, Canada
Print_ISBN :
0-7803-0144-7
DOI :
10.1109/APS.1991.174908
