High bulk mode rejection surface wave device

Wave transmission lines and networks – Coupling networks – With impedance matching

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

310 98, 333 72, H03H 902, H03H 926, H03H 930, H04R 1710, 310

Patent

active

039367746

ABSTRACT:
Disclosed is a surface wave device comprising one transducer having its fundamental resonant frequency at a subharmonic of the device operating frequency and a second transducer having its fundamental resonant frequency at the device operating frequency. Both transducers respond to surface waves at the operating frequency. Only the harmonic operated transducer responds to bulk waves at the operating frequency. Thus, signal coupled from one transducer to the other at the operating frequency contains no noise generated by bulk mode coupling.

REFERENCES:
patent: 3614463 (1971-10-01), Slobodnik, Jr.
patent: 3742396 (1973-06-01), Bahr et al.
Kuhn - "Enhanced Harmonic Response of an Interdigital Surface Acoustic Wave Transducer," in IEEE Tran. Electron Devices, Vol. ED-18 No. 6, June 1971; p. 395.
Engan - "Excitation of Elastic Surface Waves by Spatial Harmonics of Interdigital Transducers," in IEEE Trans. on Electron Devices, Vol. ED 16, No. 12, Dec. 1969; pp. 1014-1017.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

High bulk mode rejection surface wave device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High bulk mode rejection surface wave device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High bulk mode rejection surface wave device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2125104

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.