Title :
Study on circularly polarized cavity antenna fed by L-shaped probes
Author :
Yanagi, Takashi ; Oshima, Takeshi ; Nishizawa, Kazushi ; Fukasawa, Toru ; Miyashita, Hiroaki ; Konishi, Yoshihiko ; Chiba, Isamu
Author_Institution :
Inf. Technol. R&D Center, Antennas Technology Dept., Mitsubishi Electr. Corp., Kamakura, Japan
Abstract :
A circularly polarized cavity antenna that is fed by L-shaped probes is proposed in this paper. This antenna has a simple configuration and good connectivity with a feed circuit. Wideband impedance matching is achieved by using the vertical arm of the L-shaped probe located near the side of the cavity as an impedance transformer, thus eliminating the need for other impedance matching circuits. The effectiveness of the proposed antenna has been confirmed experimentally.
Keywords :
antenna feeds; broadband antennas; electromagnetic wave polarisation; impedance matching; L-shaped probes; circularly polarized cavity antenna fed; feed circuit; impedance matching circuit; impedance transformer; wideband impedance matching; Cavity resonators; Dipole antennas; Feeds; Impedance; Impedance matching; Probes; L-shaped probe; cavity antennas; circularly polarized;
Conference_Titel :
Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on
Conference_Location :
Spokane, WA
Print_ISBN :
978-1-4244-9562-7
DOI :
10.1109/APS.2011.5997160
