Electronically Variable Superconducting Stripline
Original Publication Date: 1984-May-01
Included in the Prior Art Database: 2005-Feb-03
Superconducting striplines are electronically variable in characteristic impedance as a function of heavy injection of excess quasi-particles, which modifies the energy gap of the superconductive ground plane of the stripline. Modulating superconductive striplines by controlled heavy injection of quasi-particles provides a number of practical applications useful in electronic apparatus. Planar transmission lines may be modulated according to known modulation techniques including phase velocity, inductance and impedance. Energy gap modulation is achieved by heavy injection of excess energetic quasi-particles, for example, by photon injection through optical irradiation.