Title :
An integrated SAW-based RF spectrum analyzer
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
Abstract :
A channelizer configuration for frequency sorting using a purely surface-acoustic-wave (SAW) spectrum analyzer is described. The unique feature of this channelizer is an acoustic Bragg lens consisting of a linearity chirped SAW grating which acts as a deflector and a focusing lens. This integrated acoustic spectrum analyzer is essentially a single-input multiple-output filter bank which has a high dynamic range, preserves the phase information, and is a fully integrated SAW device. It is shown that a 50-dB out-of-band rejection and 20-dB insertion loss with 3-dB uniformity can be attained using standard SAW technologies
Keywords :
spectral analysers; surface acoustic waves; 20 dB; SAW-based RF spectrum analyzer; acoustic Bragg lens; channelizer configuration; deflector; dynamic range; focusing lens; frequency sorting; insertion loss; linearity chirped SAW grating; out-of-band rejection; phase information; single-input multiple-output filter bank; Acoustic devices; Bragg gratings; Chirp; Filter bank; Lenses; Linearity; Radio frequency; Sorting; Spectral analysis; Surface acoustic waves;
Conference_Titel :
Ultrasonics Symposium, 1992. Proceedings., IEEE 1992
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0562-0
DOI :
10.1109/ULTSYM.1992.276032
