Title :
Circuit simulation and design of integrated RF filter for vehicle-based W-CDMA mobile communications system
Author :
Andrenko, Andrey S. ; Maniwa, Toru ; Ogino, Kazushige ; Oishi, Yasuyuki
Author_Institution :
YPR R&D Center, Fujitsu Labs. Ltd., Yokosuka, Japan
Abstract :
This paper presents the results of circuit simulation and design of a car-based antenna integrated RF filter structure for 3G wideband code-division multiple access (W-CDMA) mobile phone communication system. Printed-on-thin film microstrip filter layout has been optimized to miniaturize the filter dimensions and to provide seamless integration with the feed line of a printed-on-glass antenna element. Side-coupled bandpass filter structure has been optimized to meet strict passband/stopband specification as well as to minimize the total loss of the filter circuit. The dependence of the filter transmission characteristics on the material properties of the thin film has also been numerically investigated.
Keywords :
3G mobile communication; band-pass filters; circuit simulation; code division multiple access; integrated circuit design; microstrip filters; radiofrequency filters; CDMA mobile communications; antenna integrated RF filter structure; bandpass filter structure; circuit simulation; filter transmission properties; glass antenna; integrated RF filter design; side coupled bandpass filter structure; thin film microstrip filter; wideband code division multiple access; 3G mobile communication; Band pass filters; Broadband antennas; Circuit simulation; Microstrip antennas; Mobile antennas; Mobile communication; Mobile handsets; Multiaccess communication; Radio frequency;
Conference_Titel :
Physics and Engineering of Microwaves, Millimeter, and Submillimeter Waves, 2004. MSMW 04. The Fifth International Kharkov Symposium on
Print_ISBN :
0-7803-8411-3
DOI :
10.1109/MSMW.2004.1345804
