US 2019/0089031 A1 · SYSTEMS AND DEVICES FOR FILTERING ELECTRICAL SIGNALS

Abstract

Adaptions and improvements to coaxial metal powder filters include distributing a dissipative matrix mixture comprising superconductive material, metal powder, epoxy, and/or magnetic material within a volume defined by an outer tubular conductor and inner conductor. The frequency response of the filter may be tuned by exploiting the energy gap frequency of superconductive material in the dissipative matrix. The inner surface of the outer tubular conductor may be covered with a superconductive material. For a dissipative matrix comprising magnetic material or superconductive powder particles of a certain size, an external magnetic field can be applied to tune the frequency response of the filter.

Claims20

Dependent claims

A system comprising an electrical signal filtering device, the electrical signal filtering device comprising:

a tubular outer conductor having an outer surface and an inner surface, and a longitudinal passage bounded by the inner surface of the tubular outer conductor, the longitudinal passage having a longitudinal center axis;
an inner conductor having an outer surface, the inner conductor extending through the longitudinal passage in a direction parallel to the longitudinal center axis;
and
a dissipative matrix distributed in the longitudinal passage to occupy at least a portion of the volume defined by the inner surface of the tubular outer conductor and the outer surface of the inner conductor, wherein the dissipative matrix comprises a first material that is superconductive in a respective range of temperatures.

1 more element

Dependencies are inferred from the claim text.

Systems and devices for filtering electrical signals

Life of this patent

Systems and devices for filtering electrical signals

Life of this patent

Abstract

Claims20