Wave transmission lines and networks – Coupling networks – With impedance matching
Patent
1974-10-25
1976-06-15
Smith, Alfred E.
Wave transmission lines and networks
Coupling networks
With impedance matching
310 82, 310 95, 333 72, H03H 926, H03H 930, H01L 4118, H01L 4122
Patent
active
039639975
ABSTRACT:
The invention relates to the directive transmission of elastic surface waves. The object of the invention is a device comprising a crystalline substrate on whose surface elastic surfaces waves can be propagated. The value of surface-wave phase velocity can be changed by local modification of the crystalline lattice structure in a directive zone formed immediately below the surface. The structural modification of the lattice structure can be produced by ion implantation.
REFERENCES:
patent: 3406358 (1968-10-01), Seidel et al.
patent: 3626334 (1971-12-01), Keyes
patent: 3655457 (1972-04-01), Duffy et al.
patent: 3697899 (1972-10-01), Dias
patent: 3753157 (1973-08-01), Ash et al.
barrekette et al., "Multichannel Guide for ASW Memories," IBM Technical Disclosure Bulletin vol. 14, No. 4, Sept. 1971, 1295-1298.
Ash et al., "Microsound Surface Waveguides," in IEEE Trans. on Microwave Theory and Techniques, vol. MTT-17, Nov. 1969, pp. 882-885.
Williamson et al., "The Use of Surface-Elastic-Wave Reflection Gratings in Large Time-Bandwidth Pulse-Compression Filters," in IEEE Trans. on Microwave Theory and Techniques, vol. MTT 21, Apr. 1973, pp. 195-197.
"Thomson-CSF"
Nussbaum Marvin
Smith Alfred E.
LandOfFree
Device for the directive transmission of elastic surface waves a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for the directive transmission of elastic surface waves a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for the directive transmission of elastic surface waves a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1697700