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Proceedings Paper

A Reference Frequency System At 11.5-12.0 GHz For Phase Locking A Carcinotron At 320-370 GHz
Author(s): E. E. M. Woestenburg
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Paper Abstract

Carcinotrons used as local oscillator in mm/sub-mm receivers require frequency and phase stabilisation, the latter more specifically for receivers in mm-interferometers. Locking to a phase- and frequency-stable X- or S-band reference source, using a microwave synthesizer is quite common for laboratory experiments. For use on a telescope in a common user receiver such a synthesizer is thought to be too expensive, as well as an overkill. This paper describes a tunable 11.5-12.0 GHz reference frequency system, used in a frequency and phase lock system for a 320-370 GHz carcinotron, that incorporates a relatively cheap 250-500 MHz synthesizer with relaxed phase noise specifications. Necessary phase noise specifications for the reference frequency system and synthesizer will be derived. Results on the frequency and phase locking of a carcinotron will be presented.

Paper Details

Date Published: 21 April 1986
PDF: 6 pages
Proc. SPIE 0598, Instrumentation for Submillimeter Spectroscopy, (21 April 1986); doi: 10.1117/12.952340
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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