Superconductor technology: apparatus – material – process – High temperature devices – systems – apparatus – com- ponents,... – High frequency waveguides – resonators – electrical networks,...
Patent
1995-10-27
2000-01-11
Lee, Benny T.
Superconductor technology: apparatus, material, process
High temperature devices, systems, apparatus, com- ponents,...
High frequency waveguides, resonators, electrical networks,...
505700, 505701, 505866, 333 995, 333161, H01P 118, H01B 1202
Patent
active
060145757
ABSTRACT:
The present invention provides a superconducting transmission delay line phase shifter which has an essential structure as follows. The superconducting transmission delay line phase shifter has a layer made of a material showing a low dielectric loss the layer comprising first, second and third sections, wherein the second section being positioned between the first and third sections. The superconducting transmission delay line phase shifter also has a ferroelectric selectively provided in the second section. The ferroelectric extends between boundaries of the second section to the first and third sections. The superconducting transmission delay line phase shifter also has a thin film made of a conductor having a high conductivity. The conductive thin film extends across the bottoms of the first, second and third sections. The superconducting transmission delay line phase shifter also has a superconducting signal transmission line, on which signals are transmitted. The superconducting signal transmission line comprises a signal input section, a phase shifting section jointed with the signal input section where transmission signals show phase shift in the phase shifting section, and a signal output section connected to the phase shifting section. The signal input section is at least in contact with the first section and the signal input section is level in relation to the top of the first section. The signal output section is at least in contact with the third section and the signal output section is level in relation to the top of the third section. The phase shifting section is at least in contact with the ferroelectric and the phase shifting section is level in relation to the top of the ferroelectric.
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Lee Benny T.
NEC Corporation
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