Title :
4×4-element corporate-feed waveguide slot array antenna with cavities for the 120 GHz-band
Author :
Dongjin Kim ; Hirokawa, Jiro ; Ando, Makoto ; Takeuchi, Jun ; Hirata, Akihiko
Author_Institution :
Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Tokyo, Japan
Abstract :
We propose a 4×4-element corporate-feed waveguide slot array antenna with cavities for the 120 GHz band. In order to compensate the mutual coupling effects among neighbored slots, a cavity structure is employed for each radiating slot. As a result, broad bandwidth characteristic is achieved in a small-sized array. The reflection bandwidth is 12.0% for VSWR <; 1.5. The peak gain is 21.2 dBi with 80% antenna efficiency.
Keywords :
antenna feeds; millimetre wave antenna arrays; slot antenna arrays; 4x4-element corporate-feed waveguide slot array antenna; bandwidth 120 GHz; broad bandwidth characteristic; cavity structure; gain 21.2 dB; mutual coupling effects; reflection bandwidth; Antenna arrays; Arrays; Bandwidth; Cavity resonators; Mutual coupling; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6710776
