Title :
A 4-element multibeam microstrip smart antenna system
Author :
Zhaonian Li ; Xiaoming Yu ; Chen Wu ; Litva, J.
Author_Institution :
Commun. Res. Lab., McMaster Univ., Hamilton, Ont., Canada
Abstract :
A 4-element multibeam microstrip smart antenna system at 1.96 GHz is presented. It can be used in communications system such as the base station antenna of land mobile radio system. Test results showed that this microstrip smart antenna system is capable of automatically adjusting its radiation pattern direction, tracking the stronger receiving signal and rejecting the relatively weak co-channel interference by mean of internal feedback control while the system is in operation. This 4-element multibeam microstrip smart antenna system has significant improvements in not only increasing the spectral efficiency, capacity, and extending the range of coverage but also small size, light weight and lower cost.
Keywords :
antenna radiation patterns; antenna testing; cochannel interference; directive antennas; interference suppression; land mobile radio; microstrip antenna arrays; multibeam antennas; radiofrequency interference; receiving antennas; tracking; 1.96 GHz; 4-element multibeam microstrip smart antenna system; UHF antenna; base station antenna; capacity; communications system; cost; internal feedback control; land mobile radio system; radiation pattern direction; range; receiving signal; size; spectral efficiency; test results; tracking; weak co-channel interference; weight; Antenna feeds; Antenna radiation patterns; Automatic testing; Base stations; Directive antennas; Land mobile radio; Microstrip antennas; Mobile antennas; Receiving antennas; System testing;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1997. IEEE., 1997 Digest
Conference_Location :
Montreal, Quebec, Canada
Print_ISBN :
0-7803-4178-3
DOI :
10.1109/APS.1997.630059
