Tuneable microwave devices including fringe effect capacitor inc

Superconductor technology: apparatus – material – process – High temperature devices – systems – apparatus – com- ponents,... – High frequency waveguides – resonators – electrical networks,...

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505700, 505701, 505866, 333 74C, 333 99S, 361281, 3613211, H01B 1202, H01G 706

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057211949

ABSTRACT:
The present invention relates to a tuneable fringe effect capacitor for conducting radio frequency energy. The capacitor includes a thin film of ferroelectric material, a pair of films of a conductive material deposited on the ferroelectric film with a gap between the films, and a substrate for the ferroelectric material and the conductive films. The capacitance value across the gap is varied by applying a voltage to the ferroelectric material and thereby altering the dielectric constant of the ferroelectric material.

REFERENCES:
patent: 3365400 (1968-01-01), Pulvari
patent: 3569795 (1971-03-01), Gikow
patent: 3784937 (1974-01-01), Jackson et al.
patent: 4161766 (1979-07-01), Castleberry et al.
patent: 4837536 (1989-06-01), Honjo
patent: 5070241 (1991-12-01), Jack
patent: 5105200 (1992-04-01), Koepf
patent: 5142437 (1992-08-01), Kammerdiner et al.
patent: 5146299 (1992-09-01), Lampe et al.
patent: 5208213 (1993-05-01), Ruby
patent: 5212463 (1993-05-01), Babbitt et al.
patent: 5307033 (1994-04-01), Koscica et al.
patent: 5409889 (1995-04-01), Das
Ramesh, et al., "Feuoelectric PbZr.sub.0.2 Ti.sub.0.2 Ti.sub.0.8 O.sub.3 Thin Films on Epitaxial Y-Ba-Cu-O" (Oct. 5, 1991).
McAvoy, et al., "Superconducting Stripline Resonator Performance" Proc. 1988 Applied Superconductivity Conf.
Jackson, et al., "A High Temperature Superconductor Phase Shifter", Dec. 1992, Microwave Journal.
Bowling et al., "Radiation Efficiency Measurements of a Thin-Film Y-Ba-Cu-O Superconducting Half-Loop Antenna at 500 Mhz", IEEE, No Month, 1991, pp. 1243-1246.
Takemoto et al., "Microstrip Resonators and Filters using High-TC Superconducting Thin Films on LaA10.sub.3 ", IEEE No Month, 1991, pp. 2549-2552.
Kobayashi et al., "Monolithic HTS Microwave Phase Shifter and Other Devices", No Month, 1992, pp. 419-424.
White et al., United States Statutory Invention Registration No. H1079, filed Feb. 25, 1992, Published Jul. 07, 1992.
Jackson et al., Novel Monolithic Phase Shifter Combining Ferroelectrics And High Temperature Superconductors, Microwave And Optical Technology Letters, vol. 5, Nov. 14, Dec. 20, 1992.
Takemoto-Kobayashi, et al., Monolithic High-Tc Superconducting Phase Shifter at 10 GHz, 1992 IEEE MTT-S Digest.
Jackson et al., Monolithic HTS Microwave Phase Shifter and Other Devices, Journal of Superconductivity, vol. 5, Nov. 4, 1992.
Walkenhorst et al., Dielectric properties of SrTiO.sub.3 thin films used in high T.sub.c Superconducting Field-Effect Devices, Appl. Phys. Lett. 60 (14), 6 Apr. 1992, American Institute of Physics.
Varadan et al., Ceramic Phase Shifters For Electronically Steerable Antenna Systems, Microwave Journal, Jan. 1992.
Dinger et al., A Survey of Possible Passive Antenna Applications of High-Temperature Superconductors, IEEE Transactions on Microwave Theory and Techniques, vol. 39, Nov. 9, Sep. 1991.
Dinger et al., Radiation Efficiency Measurements of a Thin-Film Y-Ba-CU-O Superconducting Half-Loop Antenna at 500 MHZ, 1991 IEEE MTT-S Digest.
Track et al., Investigation of an Electronically Tuned 100 GHz Superconducting Phase Shifter, 1991 IEEE.
Ryan, Paul A., High-Temperature Superconductivity for EW and Microwave Systems, Journal of Electronic Defense, May 1990.
Das, S.N., Ferroelectrics For Time Delay Steering Of An Array, Ferroelectrics, 1973, vol. 5.
Scott et al., Microstructure-Induced Schottky Barrier Effects in Barium Strontium Titanate (BST) Thin Films For 16 and 64 MBIT Dram Cells, Sep. 1992 IEEE.

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