NASA NTRS · 19920019328
Monolithic mm-wave phase shifter using optically activated superconducting switches
Abstract
A phase shifter is disclosed having a reference path and a delay path, light sources, and superconductive switches. Each of the superconductive switches is terminated in a virtual short circuit, which may be a radial stub. Switching between the reference path and delayed path is accomplished by illuminating the superconductive switches connected to the desired path, while not illuminating the superconductive switches connected to the other path.
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Romanofsky, Robert R., Bhasin, Kul B.. 1992-05-26. Monolithic mm-wave phase shifter using optically activated superconducting switches. https://ntrs.nasa.gov/citations/19920019328
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