Broadband 230 GHz finline mixer for astronomical imaging arrays.

Details Broadband 230 GHz finline mixer for astronomical imaging arrays. Broadband 230 GHz finline mixer for astronomical imaging arrays.

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ell....33..498y&link_type=abstract

Electron. Lett., Vol. 33, No. 6, p. 498 - 500

Physics

4

Detector Arrays: Imaging

Scientific paper

The authors report the successful operation of an antipodal finline quasi-particle SIS mixer at 230 GHz. The mixer is fed by a waveguide diagonal horn and uses planar circuit technology and integrated tuning. The mixer is tested over the frequency range 213 - 265 GHz and a receiver noise temperature of ≡60K DSB over the whole of this range is obtained. This work has shown that superconducting finline mixers have low noise and are easy to manufacture and are therefore suitable for large-format imaging arrays.

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