US 7,610,072 B2 · Superconductive stripline filter utilizing one or more inter-resonator coupling members

Abstract

An inter-resonator coupling scheme for a filter is disclosed. An inter-resonator coupling member is located between successive resonators in the filter. By adjusting the length and/or the proximity of the inter-resonator coupling member relative to the adjacent resonators, the ratio of energy transferred from resonator to resonator (via the inter-resonator coupling member) may be increased and/or decreased. By increasing the ratio of energy transferred from resonator to resonator, the bandwidth of the filter is increased and is made relatively insensitive to tuning which may occur via manipulation of field disturbances introduced by tuning tips. The inter-resonator coupling member is made of a conductive or superconductive material and contains at least three sections. The first section runs substantially parallel to an edge of the first resonator that is not profoundly influenced by the source of field disturbance. The third section runs substantially parallel to an edge of the second resonator that is not profoundly influenced by the source of field disturbance. A second section connects the first and third sections.

Claims16

Dependent claims

A stripline filter, comprising:

a) a first resonator, the first resonator having a first edge, a first end and a second end, wherein the first edge extends generally from the first end to the second end of the first resonator;
b) a second resonator, the second resonator having a second edge, a first end and a second end, wherein the second edge extends generally from the first end to the second end of the second resonator, wherein the first and second resonator are physically located opposing one another with the first edge generally parallel to the second edge;
and
c) a coupling member physically located between the first and second resonators, wherein the coupling member includes a first section that physically extends only along a portion of the first edge at the second end, a third section that physically extends only along a portion of the second edge at the first end, and a second section that extends between and connects the first and third sections, wherein the coupling member is non-resonant in a passband of the stripline filter and is arranged and configured to transfer energy between the first and second resonator and minimize the sensitivity to tuning of the filter.

1 more element

Dependencies are inferred from the claim text.

Superconductive stripline filter utilizing one or more inter-resonator coupling members

Life of this patent

Superconductive stripline filter utilizing one or more inter-resonator coupling members

Life of this patent

Abstract

Claims16