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SAW-based 100 MHz-bandwidth adaptive filter

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3 Author(s)
Oates, D.E. ; Massachusetts Institute of Technology, Lincoln Laboratory, Lexington, USA ; Green, J.B. ; Grant, P.M.

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.

Published in:

Electronics Letters  (Volume:22 ,  Issue: 19 )