Low-loss, wide bandwidth limiter

Details Low-loss, wide bandwidth limiter Low-loss, wide bandwidth limiter

1995-01-09

1996-12-17

Lee, Benny T.

Superconductor technology: apparatus, material, process

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

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

505700, 505701, 505866, 333 172, 333 99005, H01P 122, H01B 1206

Patent

active

055853307

ABSTRACT:
A high-temperature superconductor (HT.sub.c S) in a microstrip configurat which is electrically related to a superconducting coupler and which is controlled by a heater disposed over the superconducting microstrip line. This limiter configuration is used in a series configuration with other circuitry and utilizes the low loss characteristics of the HT.sub.c S material and the wide bandwidth characteristics of microstrip. The structure itself is a five layer microstrip geometry which includes a normal metal ground plane; a dielectric substrate disposed on the metal ground plane; a superconducting microstrip transmission disposed on the substrate; a dielectric film layer disposed on the superconducting microstrip; and a heating element disposed on the dielectric film layer and over the superconducting microstrip.

REFERENCES:
patent: 3593207 (1971-07-01), Woermbke et al.
patent: 5061909 (1991-10-01), Hjipieris et al.
patent: 5235309 (1993-10-01), Preisler et al.
patent: 5329261 (1994-07-01), Das

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