Triple transit suppression for bulk acoustic delay lines

Wave transmission lines and networks – Coupling networks – Delay lines including elastic bulk wave propagation means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

333143, 333151, H03H 930, H01L 4110

Patent

active

042426537

ABSTRACT:
Electroacoustic apparatus is described incorporating a substrate having a plurality of transducers on an upper surface and a plurality of transducers on a lower surface each positioned for receiving bulk acoustic waves from a respective transducer on the upper surface wherein each receiving transducer has a predetermined acoustical path length from its respective transducer on the upper surface, means for coupling an input signal to the transducers on the upper surface, and means for coupling an output signal from the transducers on the lower surface. The invention further provides a plurality of bulk mode acoustic delay lines having predetermined acoustical path lengths which are coupled in parallel to suppress the triple transit signal.
The invention overcomes the problem of spurious triple transit signals in bulk mode acoustic delay lines for input signals having a wide bandwith, such as an octave.

REFERENCES:
patent: 3810257 (1974-05-01), Jones et al.
patent: 4099147 (1978-07-01), McAvoy
Lewis, "Triple Transit Suppression in Surface-Acoustic-Wave Devices", in Electronics Letters, Nov. 16, 1972, vol. 8, No. 23, pp. 553-554.
Sperry et al., "Wideband Microwave Acoustic Delay Line with Exceptionally Smooth Phase and Loss Response", Digest of the International Microwave Theory and Technique Symposium Sponsored by the IEEE, May 17, 1971, pp. 62-63.

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

Triple transit suppression for bulk acoustic delay lines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Triple transit suppression for bulk acoustic delay lines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Triple transit suppression for bulk acoustic delay lines will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-9745

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