A simple multiple beam lo coupler for sis heterodyne arrays

Little, L.T. and Davies, S.R (1994) A simple multiple beam lo coupler for sis heterodyne arrays. International Journal of Infrared and Millimeter Waves, 15 (6). pp. 935-942. ISSN 0195-9271. (The full text of this publication is not available from this repository)

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Abstract

The construction of SIS heterodyne imaging arrays for submillimetre wavelengths requires multiple coupling of the local oscillator signal. The quasi-optical analogue of a multiple cross-guide coupler, employing 45-degrees beam-splitters successively stacked along the local oscillator beam, allows for individual adjustment of local oscillator power to each channel. We analyse the coupling as a function of the focal ratio of the incident beams and the number of beam widths off-axis through which the coupler is extended, and describe a simple construction method to realise a compact and effective design.

Item Type: Article
Uncontrolled keywords: sis-mixer; millimeter-waves; imaging arrays; quasi-optical
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800 Electronics (see also: telecommunications)
Divisions: Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts
Depositing User: O.O. Odanye
Date Deposited: 08 Jul 2009 11:51
Last Modified: 08 Jul 2009 11:51
Resource URI: http://kar.kent.ac.uk/id/eprint/19861 (The current URI for this page, for reference purposes)
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