High power superconductive circuits and method of...

H - Electricity – 03 – H

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H03H 7/00 (2006.01) H01P 1/203 (2006.01) H01P 3/08 (2006.01) H05K 1/09 (2006.01)

Patent

CA 2166014

A high power high temperature superconductive circuit for use in various microwave devices including filters, dielectric resonator filters, multiplexers, transmission lines, delay lines, hybrids and beam-forming networks has thin gold films deposited either on a substrate or on top of the high temperature superconductive film. Alternatively, other metal films can be used or a plurality of dielectric films can be used or a dielectric constant gradient substrate can be used. The use of these materials in a part or parts of a microwave circuit reduces the current density in those parts compared to the level of current density if only high temperature superconductive film is used. This increases the power handling capability of the circuit.

Circuit supraconducteur à haute température et grande puissance destiné à divers dispositifs hyperfréquences, y compris filtres, filtres à résonateur diélectrique, multiplexeurs, lignes de transmission, lignes à retard, réseaux hybrides et conformateurs de faisceaux. De minces pellicules d'or sont déposées soit sur un substrat, soit sur la pellicule supraconductrice à haute température. On peut aussi utiliser des pellicules d'autres métaux ou un certain nombre de pellicules diélectriques, ou substrat diélectrique à gradient constant. L'utilisation de ces matériaux dans une ou plusieurs parties d'un circuit hyperfréquence réduit la densité de courant dans ces parties par rapport à la densité de courant obtenu avec seulement la pellicule supraconductrice à haute température. La capacité de traitement de puissance du circuit est ainsi accrue.

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