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Proceedings Paper

Performance Of A Single Ended Schottky Diode Mixer At 345 GHZ As Low Noise Mixer And Frequency Doubler For 690 GHz
Author(s): E. E. M. Woestenburg
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Paper Abstract

The first part of this paper describes the design and construction of a low noise Schottky diode waveguide mixer, operating in the 320-370 GHz band. The mixer incorporates a fundamental mode waveguide, a broadband coaxial RF-structure and a contacting tunable backshort. Construction details of the mixer will be given, as well as noise temperature and conversion loss measurements for a room temperature device. The influence of the whisker length on the mixer performance will be described. The possibility of using the same mixer design for a 490 GHz mixer will also be considered. Some preliminary measurement results will be presented. The second part of this paper describes a measurement setup for investigation of the performance of a mixer as frequency doubler with 690 GHz output frequency. Results of measurements of output power at 690 GHz will be presented, showing the capability of a single ended Schottky mixer to produce adequate local oscillator power to drive e.g. an InSb-bolometer.

Paper Details

Date Published: 21 April 1986
PDF: 5 pages
Proc. SPIE 0598, Instrumentation for Submillimeter Spectroscopy, (21 April 1986); doi: 10.1117/12.952320
Show Author Affiliations
E. E. M. Woestenburg, Netherlands Foundation for Radio Astronomy (The Netherlands)


Published in SPIE Proceedings Vol. 0598:
Instrumentation for Submillimeter Spectroscopy
Erik L. Kollberg, Editor(s)

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