Compound surface acoustic wave matched filters

Details Compound surface acoustic wave matched filters Compound surface acoustic wave matched filters

1982-10-25

1985-03-19

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310313C, 333154, 333193, 364821, 375 96, H03H 964, H03H 9145

Patent

active

045062390

ABSTRACT:
Compound surface acoustic wave matched filters comprise chirp-biphase and biphase code multiplex transducer pairs on piezoelectric substrates. Both alternatives offer significantly improved processing gain when compared with conventional biphase filters. The advantage is realized by convolving the correlation peak of the chirp or biphase input transducer on the response of the conventional biphase output transducer, thus achieving a large processing gain with a minimum number of transducer electrodes.

REFERENCES:
patent: 3376572 (1968-04-01), Mayo
patent: 3633132 (1972-01-01), Hartemann
patent: 3675163 (1972-07-01), Hartman et al.
patent: 3845419 (1974-10-01), Nudd
patent: 3903486 (1975-09-01), Bert et al.
patent: 3931598 (1976-01-01), Bongianni
patent: 4037159 (1977-07-01), Martin
patent: 4427954 (1984-01-01), Veith et al.
Smith-"Saw Filters for CPSM Spread Spectrum Communication", National Telecommunications Conference, Houston, TX, U.S.A., (Nov. 30-Dec. 4, 1980), CH1539-6/80/0000-0109, .COPYRGT.1980 IEEE, pp. 22.1.1-22.1.6.

Affiliated with

Also associated with

Rating

Compound surface acoustic wave matched filters does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compound surface acoustic wave matched filters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compound surface acoustic wave matched filters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-755540