High temperature superconductor lumped elements and circuit therefrom

A method for reducing radiative losses in a high frequency, high Q, lumped element device, the device including an inductor and a capacitive element, the inductor being disposed on a support, the inductor adapted to carry high frequency current at or above the radio frequency range through the inductor, the method comprising the steps of:

• forming a plurality of substantially parallel long runs on the support and connecting the long runs to adjacent long runs by end portions thereof so as to form a continuous serpentine pattern for the inductor, and
• flowing the high frequency current at or above the radio frequency range through the inductor, the current flowing in adjacent long runs in opposite directions, thereby reducing radiative losses.

An electrical element comprising:

• a substantially non-magnetic substrate having a first face, and
• a high temperature superconducting lumped inductor having a zig-zag pattern disposed on the first face, the superconducting lumped inductor being epitaxial to the substrate in that the superconducting lumped inductor has a crystalline orientation which is fixed in relationship to the substrate.

An electrical LC circuit comprising:

• a substrate,
• a capacitor having first and second plates, each plate being disposed on the substrate, the first and second plates being spaced apart to define a gap therebetween, and
• an inductor disposed on the substrate having a first end thereof connected to the second plate of the capacitor, the inductor having at least one turn passing through the gap, and a terminal end thereof connected to said at least one turn.

An electrical LC circuit comprising:

• a substrate,
• a parallel plate capacitor having a first plate and a second plate, wherein the first plate is displaced from the substrate and the second plate is disposed on the substrate,
• an inductor disposed on the substrate, the inductor being connected to the second plate of the capacitor and having at least one turn encircling the second plate of the capacitor, and said inductor having a terminal end thereof connected to said at least one turn.

An electrical resonant circuit comprising:

• a substantially non-magnetic substrate having a first face, and
• a high temperature superconducting lumped inductor having a zig-zag pattern disposed on the first face, the inductor being coupled to a capacitive element and configured into a resonant circuit having a Q in excess of 1000.