Title :
Low sidelobe and tilted beam base-station antennas for smaller-cell systems
Author :
Yamada, Yoshihide ; Kijima, Makoto
Author_Institution :
Radio Commun. Syst. Lab., NTT Corp., Kanagawa, Japan
Abstract :
A base-station antenna, which features both low sidelobe and variable beam tilt characteristics, is developed. A novel design objective pattern with many sidelobe ripples is proposed in synthesizing low sidelobe characteristics. A simple array group feed scheme is then proposed to realize a prescribed beam tilt angle, maintaining low sidelobe characteristics. The optimum group number is derived.<>
Keywords :
antenna radiation patterns; cellular radio; array group feed; low sidelobe; smaller-cell systems; tilted beam base-station antennas; variable beam tilt characteristics; Antenna radiation patterns; Antennas and propagation; Degradation; Dipole antennas; Laboratories; Mobile antennas; Phase shifters; Radio communication; Shape; Telegraphy;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location :
San Jose, CA, USA
DOI :
10.1109/APS.1989.134632
