Thin-film integrated circuit with tank circuit characteristics a

Details Thin-film integrated circuit with tank circuit characteristics a Thin-film integrated circuit with tank circuit characteristics a

1974-08-29

1979-08-28

Smith, Alfred E.

Wave transmission lines and networks

Coupling networks

Electromechanical filter

310313, 331107A, 333196, H03H 904, H03H 920, H03H 926, H01L 4110

Patent

active

041662580

ABSTRACT:
A thin-film integrated circuit with tank circuit characteristics may comprise a surface acoustic wave transducer with appropriate geometry. A preferred embodiment of such integrated circuit includes, in addition to the surface acoustic wave transducer, surface acoustic wave reflecting means located adjacent the transducer, and preferably on opposite sides thereof. The reflecting means may include a pair of reflectors and be proportioned so that the device exhibits a single resonant-anti-resonant frequency pair, such as a single tank circuit. Alternatively, the reflectors may be proportioned such that the device exhibits multiple resonant-anti-resonant frequency pairs. The operating frequency may be as high as hundreds of megahertz to one gigahertz.
Applications of the thin-film integrated circuit to thin-film filters and oscillators are also disclosed.
In addition a novel form of surface acoustic wave transducer is disclosed which exhibits lower equivalent capacitance than do prior art surface acoustic wave transducers.

REFERENCES:
patent: 3510674 (1970-05-01), Biard
patent: 3550045 (1970-12-01), Adler
patent: 3568102 (1971-03-01), Tseng
patent: 3675054 (1972-07-01), Jones et al.
patent: 3716809 (1973-02-01), Reeder et al.
patent: 3760204 (1973-09-01), Yester, Jr.
patent: 3781717 (1973-12-01), Kuenemund
patent: 3801935 (1974-04-01), Mitchell
patent: 3855548 (1974-12-01), Nandi et al.
"Ultrasonics", Jan. 1971; pp. 43-45.
Bristol-"Analysis and Design of Surface Acoustic Wave Transducers"-Conference International Specialist Seminar on Component Performance and Systems Applications of Surface Acoustic Wave Devices; Avlemore, Scotland, (Sep. 25-28 1973); pp. 115-129.

Affiliated with

Also associated with

Rating

Thin-film integrated circuit with tank circuit characteristics 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 Thin-film integrated circuit with tank circuit characteristics a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thin-film integrated circuit with tank circuit characteristics a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-769479