High Tc superconducting ferroelectric MMIC phase shifters

Details High Tc superconducting ferroelectric MMIC phase shifters High Tc superconducting ferroelectric MMIC phase shifters

1996-02-12

1997-12-30

Lee, Benny T.

Superconductor technology: apparatus, material, process

High temperature devices, systems, apparatus, com- ponents,...

High frequency waveguides, resonators, electrical networks,...

505700, 505701, 505866, 333995, 333161, 333205, H01P 900, H01B 1202

Patent

active

057030200

ABSTRACT:
A MMIC high Tc superconducting ferroelectric phase shifter is comprised of as microstrip line on a film of a single crystal ferroelectric material. To operate the phase shifter over a desired bandwidth a quadrature band pass filter, having 1,2,3, . . . coupled lines, is coupled to the phase shifter. The microstrip lines are comprised of a high Tc superconductor such as YBCO, TBCCO.

REFERENCES:
patent: 5451567 (1995-09-01), Das
patent: 5496795 (1996-03-01), Das
Lee, Y.S. "14-GeHz MIC16-ns Delay Filter for Differentially Coherent QPSK Regenerative Repeater", 197E IEEE MIT-S Int'l Microwave Symposium, Ottawa, Canada, (27-29 Jan. 1978) pp. 37-40.
Varandan et al., "A Novel Microwave Planar Phase Shifter", Microwave Journal, Apr. 1995, pp. 244, 248, 250, 253, 254.

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