660- to 690-GHz open structure SIS receiver for submillimeter radioastronomy

Details 660- to 690-GHz open structure SIS receiver for submillimeter radioastronomy 660- to 690-GHz open structure SIS receiver for submillimeter radioastronomy

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994spie.2211..396r&link_type=abstract

Proc. SPIE Vol. 2211, p. 396-409, Millimeter and Submillimeter Waves, Mohammed N. Afsar; Ed.

Computer Science

1

Scientific paper

A 690 GHz receiver was built up by mounting a 690 GHz mixer element in an existing open structure mixer and by upgrading a solid state oscillator used around 345 GHz previously to the 660 to 700 GHz range. A double sideband noise temperature <500 K was accomplished and verified by a laboratory measurement of the 12CO (6-5) molecular line at 691.5 GHz. The mixer is operated at a bath temperature <2.5 K. A particular feature of this receiver is the use of one single SIS contact of submicron dimension. Its production and production and specific merits are addressed.

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