DIFFERENTIAL SUPERCONDUCTING DETECTOR Russian patent published in 2023 - IPC H01L23/00 

FIELD: telecommunications and measurement technology.

SUBSTANCE: invention relates to radiometric thermal sensors based on superconductivity, and can be used both for recording and measuring the power of ultra-small electrical signals, and in remote thermodynamic control systems, including imaging sensors in the field of millimetre, submillimetre and infrared waves in radio astronomy and for public safety maintenance systems, as well as a part of non-destructive testing of devices and materials. The technical result achieved in the invention is to obtain a signal proportional to the power difference coming to two planar antennas. The technical result is achieved in the invention due to a new solution for integrating two identical antennas, matched with thermistive bridges, into the resonator so that if the signals acting on the bridges are equal, the quality factor does not change in the resonator. The advantages of the invention are to improve the sensitivity and spatial resolution of the superconducting thermistive sensor to the limit, limited by the fundamental relationships for the sensitivity of the detector and the diffraction effects of terahertz optics, as well as the technical simplicity of obtaining such a result.

EFFECT: obtaining a signal proportional to the power difference coming to two planar antennas.

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