A 16-Element SIS Receiver for 455-495 GHz for the Heinrich Hertz Telescope

Details A 16-Element SIS Receiver for 455-495 GHz for the Heinrich Hertz Telescope A 16-Element SIS Receiver for 455-495 GHz for the Heinrich Hertz Telescope

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995stt..conf..338s&link_type=abstract

Proceedings of the Sixth International Symposium on Space Terahertz Technology, held March 21-23, 1995, at California Institute

Physics

Scientific paper

The development status of the 455 - 495 GHz SIS-receiver array is presented. The array consists of 16 elements arranged in subgroups of 2:4:2. The mixer elements are 1 μm2 Nb/A10x /Nb-junctions grown on fused quartz substrates together with the IF-filter and the integrated tuning circuit. The mixers use corrugated feed horns, reduced-height waveguides and a sliding backshort which, in addition to the integrated tuning circuit is required to achieve a broad band response. The junction fabrication technique is summarized. Receiver noise temperatures below 180 K between 430 and 480 GHz have been obtained. The receiver noise does not depend on the frequency at which the backshort is optimized.

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