Title :
Multi-band base station antenna with compact microstrip resonant cell filters
Author :
Shum, Y.H. ; Luk, K.M. ; Chan, C.H.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, China
Abstract :
A wide bandwidth multi-band antenna is designed and tested. The design is based on a dual-band patch antenna with the incorporation of microstrip band-stop filters. The antenna consists of two L-shaped probe patch antenna elements operating at different frequency bands. Two compact microstrip resonant cells are connected to the microstrip feed line to stop the transmission of higher frequency signals into the lower frequency detecting patch. As a result, the impedance bandwidths of the elements are wide enough to allow coverage of all the frequency ranges used in mobile communications; namely, five: CDMA800 (824∼896 MHz), GSM900 (870∼960 MHz), GSM1800 (1710∼1880 MHz), CDMA1900 (1850∼1990 MHz) and UMTS (1920∼2170 MHz).
Keywords :
3G mobile communication; antenna feeds; antenna testing; band-stop filters; cellular radio; microstrip antenna arrays; microstrip filters; mobile antennas; multifrequency antennas; 824 to 2170 MHz; CDMA1900; CDMA800; GSM1800; GSM900; L-shaped probe; UMTS; antenna testing; bandwidth multiband antenna; compact microstrip resonant cell filter; dual-band patch antenna; frequency band; frequency signal transmission; impedance bandwidth; microstrip band-stop filter; microstrip feed line; mobile communication; multiband base station antenna; patch antenna element;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:20040863
