Title :
Novel circular polarized antenna array substrates for 60GHz-band
Author :
Uchimura, Hiroshi ; Shino, Naoyuki ; Miyazato, K.
Author_Institution :
R&D Center, KYOCERA Corp., Kagoshima, Japan
Abstract :
Circular polarized antenna array using ceramics has been developed for ultra high-speed wireless LAN of 60GHz-band. The antenna has achieved wideband width by three major technologies: original antenna element, laminated waveguide and design method to adjust axial ratio of circular polarization. The antenna element has laminated resonator structure formed by filled via-holes and conductive pattern, which generates wide bandwidth characteristics. Measurement results of 6×8 array shows wide bandwidth of over 4GHz. Sidelobe level is less than -15dB. Gain variation is less than 1dB and axial ratio is less than 3dB.
Keywords :
antenna radiation patterns; dielectric waveguides; millimetre wave antenna arrays; polarisation; wireless LAN; 60 GHz; antenna element; antenna radiation pattern; axial ratio; circular polarization; circular polarized antenna array; dielectric waveguides; laminated resonator structure; laminated waveguide; millimeter wave antenna arrays; millimeter wave radio communication; sidelobe level; wireless LAN; Antenna arrays; Antenna measurements; Bandwidth; Broadband antennas; Ceramics; Character generation; Design methodology; Polarization; UHF antennas; Wireless LAN;
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
Print_ISBN :
0-7803-8845-3
DOI :
10.1109/MWSYM.2005.1517099
