Title :
SAW filters for radio communication systems
Author_Institution :
Siemens AG, Munich, West Germany
Abstract :
A review is presented of full-custom SAW (surface-acoustic-wave) components for radio systems, e.g., for cordless telephone, mobile radio, digital radio relay, satellite radio, and spread-spectrum communication. Design, results and applications are discussed, including the comparison with alternative filter techniques. Low-loss filters are presented with insertion losses down to 2 dB; bandpass filters with ripples less than 0.1 dB and 1°, and stopband rejections better than 60 dB; delay lines up to 2.5 GHz; SAW oscillators at a fundamental of 2 GHz with phase noise of 100 dBc/Hz; and SAW convolvers with about -60 dBm efficiency and 160 MHz bandwidth
Keywords :
radiocommunication; radiofrequency filters; surface acoustic wave devices; 160 MHz; SAW convolvers; SAW oscillators; bandpass filters; cordless telephone; delay lines; digital radio relay; full-custom SAW; insertion losses; mobile radio; radio communication systems; satellite radio; spread-spectrum communication; stopband rejections; Artificial satellites; Band pass filters; Digital communication; Digital relays; Land mobile radio; Radio communication; SAW filters; Satellite broadcasting; Surface acoustic waves; Telephony;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo
DOI :
10.1109/ISCAS.1988.15188
