Title :
A GSM900 multibeam antenna system test bed for capacity and range improvement trials
Author :
Ansbro, A.P. ; Cazzatello, G. ; Crozzoli, M. ; Fanigliulo, A. ; Donati, M.
Author_Institution :
CSELT, Torino, Italy
Abstract :
A GSM 900 MHz vertically polarised multibeam antenna testbed is presented incorporating a thin 4 beam microstrip planar antenna, a GSM mobile, a GSM base station (BS) a DSP and a personal computer (PC) to control the measurement procedure. The multibeam antenna covers 120° in azimuth with 4 beams offering an impedance bandwidth >10%, a minimum gain of 15.8 dBi for each beam and has dimensions of 710×800×12 mm. The static beamforming is performed at the radio frequency (RF). The results demonstrate a carrier to interference (C/I) improvement together with increased received signal strength indication (RSSI)
Keywords :
antenna testing; cellular radio; electromagnetic wave polarisation; land mobile radio; microstrip antennas; multibeam antennas; radiofrequency interference; 15.8 dB; 900 MHz; DSP; GSM900; azimuth; base station; capacity improvement; carrier to interference; gain; impedance bandwidth; intelligent antenna; measurement procedure; microstrip planar antenna; personal computer; radio frequency; range improvement; received signal strength indication; static beamforming; vertically polarised multibeam antenna testbed; Base stations; Digital signal processing; GSM; Microstrip antennas; Mobile antennas; Mobile computing; Planar arrays; Polarization; Radio frequency; System testing;
Conference_Titel :
Personal Wireless Communications, 1997 IEEE International Conference on
Conference_Location :
Mumbai
Print_ISBN :
0-7803-4298-4
DOI :
10.1109/ICPWC.1997.655516
