Title :
SAW-based 100 MHz-bandwidth adaptive filter
Author :
Oates, D.E. ; Green, J.B. ; Grant, P.M.
Author_Institution :
Massachusetts Institute of Technology, Lincoln Laboratory, Lexington, USA
Abstract :
We report the design and operation of a wideband adaptive filter which uses a 350-tap SAW/FET programmable transversal filter. The SAW/FET device incorporates surface-acoustic-wave (SAW) signal propagation in conjunction with a field-effect-transistor (FET)-controlled sampling array. The adaptive processor uses a digital computer to calculate the tap-weight updates and achieves up to 25 dB of adaptive CW cancellation.
Keywords :
adaptive systems; field effect transistors; passive filters; surface acoustic wave devices; SAW-based 100 MHz-bandwidth adaptive filter; SAW/FET programmable transversal filter; sampling array; signal propagation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860682
