Thin film superconductor inductor with shield for high frequency resonant circuit
AssigneeGeneral Electric Company
InventorsWaseem A. Roshen, Antonio A. Mogro-Campero, James W. Bray, Charles S. Korman
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Abstract
An inductor uses high temperature superconductors in order to obtain high Q for high frequency operation. The superconductors are applied as thin films to substrates. In some embodiments, superconductor thin films are applied to opposite sides of the same substrate. Superconductive thin films are applied outside the magnetic field establishing superconductive thin films in order to shield against leakage of the magnetic field beyond the inductor. The inductor is connected to a capacitor to realize a resonant circuit used in a power conversion system.
Claims14
An inductor comprising:
- a conductive first outer layer;
- a conductive second outer layer;
- a first inner layer in between said first and second outer layers, said first inner layer having a magnetic field establishing first active conductor portion separated from both of said first and second outer layers, said first active conductor portion being made of superconductor material which has a critical temperature greater than 30.degree. K.;
- first and second external inductor leads;
- and wherein there is a continuous conductor path from said first lead to said second lead, said first active conductor portion being a part of said continuous conductor path.
A system comprising:
- an inductor having first and second external inductor leads with a continuous conductor path between them, said continuous conductor path including a first inner layer having a magnetic field establishing first active conductor portion, said first active conductor portion being made of a superconductive material which has a critical temperature greater than 30.degree. K.;
- and a capacitor having two external capacitor leads, one of said capacitor leads connected to one of said first and second external inductor leads, wherein said inductor and said capacitor form a resonant circuit having a resonant frequency of at least 1 MHz;
- and
- first and second outer layers limiting magnetic fields established by said inductor to a region lying between said first and second outer layers, said first and second outer layers being made of superconductor material which has a critical temperature greater than 30.degree. K.
A resonant circuit, comprising:
- an inductor including (a) a conductive first outer layer;
- (b) a conductive second outer layer;
- (c) a first inner layer in between said first and second outer layers, said first inner layer having a magnetic field establishing first active conductor portion separated from both of said first and second outer layers, said first active conductor portion being made of superconductor material which has a critical temperature greater than 30.degree. K.;
- (d) first and second external inductors leads;
- e) and wherein there is a continuous conductor path from said first lead to said second lead, said first active conductor portion being a part of said continuous conductor path, and
- a capacitor having two external capacitor leads, one of said capacitor leads connected to one of said first and second external inductor leads, wherein said inductor and said capacitor form a resonant circuit having a resonant frequency of at least 1 MHz.
Dependencies are inferred from the claim text.