Engineering topics
McGrath, W.
Publications and source records attributed to McGrath, W..
Low-Noise and Wideband Hot-Electron Superconductive Mixers at THz Frequencies
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Low-noise and Wideband Hot-Electron Superconductive Mixers for THz Frequencies
Superconductive hot-electron bolometer (HEB) mixers have been built and tested in the frequency range from 1.1 THz to 2.5 THz.
A Novel Noncontacting Waveguide Backshort for Submillimeter Wave Frequencies
A novel noncontacting waveguide backshort has been developed which provides excellent performance. It consists of a metallic bar with rectangular or circular holes. It has the advantage of being mechanically rugged and readily fabricated using a variety of methods for frequencies up to the high submillimeter wave range.
A Submillimeter Wave SIS Heterodyne Receiver Using Nb Tunnel Junctions with Integrated Tuning Circuits for 626 GHz
So far, the most sensitive heterodyne receivers in the millimeter-wave and submillimeter-wave frequency ranges have used the mixing response of the quasiparticle currents in SIS tunnel junctions.
A 547 GHz SIS Receiver Employing a Submicron Nb Junction with an Integrated Matching Circuit
The most sensitive heterodyne receivers used for millimeter wave and submillimeter wave radioastronomy employ superconductor-insulator-superconductor (SIS) tunnel junctions as the nonlinear mixing element.
A Submillimeter Wave SIS Receiver for 547 GHz
The most sensitive heterodyne receivers used for millimeter wave and submillimeter wave radioastronomy employ superconductor-insulator-superconductor tunnel junctions as the nonlinear mixing element.
Performance of an SIS Receiver Over 460 GHz to 640 GHz Using Submicron Nb Junctions with Integrated RF Tuning Circuits
This paper describes a receiver for radioastronomy applications in the 460 ??0-GHz range.