Title :
Compensation of SAW filters by experimental perturbation of IDTS
Author :
Cohn, R.W. ; Wagers, R.S.
Author_Institution :
Texas Instruments Incorporated, Central Research Laboratories, Dallas, USA
Abstract :
A SAW bandpass filter on (YZ) LiNbO3 with two apodised transducers and a multistrip coupler is compensated in its rejection response from an initial 52 dB level to a 64 dB level. The compensation is accomplished through a technique that determines filter sensitivity through measurements of change in filter electrical response to perturbations in electrode length.
Keywords :
band-pass filters; compensation; surface acoustic wave devices; IDTS; LiNbO3; SAW filters; apodised transducers; bandpass filter; compensation; experimental perturbation; filter electrical response; filter sensitivity; multistrip coupler; rejection response;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860052
