Ferrite device with superconducting magnet

Claim 2

A ferrite device, comprising: a wave transmission means for carrying propagating electromagnetic wave energy; a ferrite means for controlling the propagation of electromagnetic wave energy in the wave transmission means when biased by a magnetic field; and a superconductor means, which encircles the ferrite means, for producing a magnetic field which magnetically biases the ferrite means, the superconductor means being closed and carrying a continuously circulating current which produces the magnetic field.

Claim 3

A ferrite device, as in claim 1, in which the wave transmission means comprises a conductor having a junction and a plurality of transmission lines which extend radially from the junction and the ferrite means is located adjacent the junction.

Claim 4

A ferrite device, as in claim 1, in which the superconductor means comprises a plurality of laminated rings of superconductive material.

Claim 5

A ferrite device, as in claim 1, in which the superconductor means comprises a coil of superconductive material having a plurality of turns wound around the ferrite means.

Claim 6

A circulator, comprising: a wave transmission means for carrying propagating electromagnetic wave energy, the wave transmission means comprising a conductor having a junction and a plurality of transmission lines which extend radially from the junction; a ferrite means located adjacent the junction for controlling the propagation of electromagnetic wave energy in the wave transmission means when biased by a magnetic field; and a superconductor means, which encircle the ferrite means, for producing a magnetic field which magnetically biases the ferrite means, the superconductor means being closed and carrying a continuously circulating current which produces the magnetic field.

Claim 7

A circulator, comprising: a wave transmission means for carrying propagating electromagnetic wave energy, the wave transmission means comprising a conductor having a junction and a plurality of transmission lines which extend radially from the junction; a ferrite means located adjacent the junction for controlling the propagation of electromagnetic wave energy in the wave transmission means when biased by a magnetic field; and a superconductor means, which encircle the ferrite means, for producing a magnetic field which magnetically biases the ferrite means, the superconductor means being closed and carrying a continuously circulating current which produces the magnetic field.

Claim 8

A circulator, as in claim 5, in which the superconductor means comprises a plurality of laminated rings of superconductive material.

Claim 9

A circulator, as in claim 5, in which the superconductor means comprises a coil of superconductive material having a plurality of turns wound around the ferrite means.

Claim 10

A circulator, comprising: a substrate; a ferrite element deposited on the substrate; a superconductor means encircling the ferrite element for producing a magnetic field to bias the ferrite element; a plurality of transmission lines deposited on the substrate spaced apart from the superconductor means and extending in a radial direction from the ferrite element; and a junction electrically connecting the transmission lines.

Claim 11

A circulator, comprising: a substrate; a ferrite element deposited on the substrate; a superconductor means encircling the ferrite element for producing a magnetic field to bias the ferrite element; a plurality of transmission lines deposited on the substrate spaced apart from the superconductor means and extending in a radial direction from the ferrite element; and a junction electrically connecting the transmission lines.

Claim 12

A circulator, as in claim 8, in which the superconductor means comprises a ring of superconductive material deposited on the substrate around the ferrite element.

Claim 13

A circulator, as in claim 8, in which the superconductor means comprises a first ring of superconductive material deposited on the substrate around the ferrite element and at least one ring of superconductive material deposited on top of the first ring.

Claim 14

A circulator, as in claim 8, in which the superconductor means comprises a closed planar coil having a plurality of turns of superconductive material deposited on, the substrate around the ferrite element.

Claim 15

A circulator, as in claim 11, in which the plurality of turns includes a pair of ends and the planar coil further comprises a bridge of superconductive material connecting the ends to close the coil.

Claim 16

A circulator, as in claim 8, in which the superconductor means comprises a closed three-dimensional coil having a plurality of turns of superconductive material.

Claim 17

A circulator, as in claim 13, in which the three-dimensional coil comprises: a plurality of alternating layers of superconductive material and dielectric material, each of the layers of superconductive material partially encircling the ferrite element; and via holes which are formed in the dielectric material and contain superconductive material to electrically connect the layers of superconductive material to close the coil.

Claim 18

A circulator, comprising: a substrate having a hole; a plurality of transmission lines which are located on the top surface of the substrate and extend radially from the hole; a ferrite means mounted in the hole; a superconductor means encircling the ferrite means for producing a magnetic field to bias the ferrite means; and a junction electrically connecting the transmission lines.

Claim 19

A circulator, comprising: a substrate having a hole; a plurality of transmission lines which are located on the top surface of the substrate and extend radially from the hole; a ferrite means mounted in the hole; a superconductor means encircling the ferrite means for producing a magnetic field to bias the ferrite means; and a junction electrically connecting the transmission lines.

Claim 20

A circulator, as in claim 15, in which the superconductor means comprises a ring of superconductive material.