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Sidebancl-Separating SIS Mixer For ALMA Band 7, 275-370 GHz

Authors:
Stéphane Claude
Abstract:
Following the design for a sideband-separating mixer using a quadrature waveguide hybrid and an in-phase waveguide power divider and SIS mixer chips experimental results of a dual side-band separating SIS mixer (25B) for Band 7, i.e. 275-370 GHz are presented. This mixer uses DSB mixer units that can be tested separately prior to the 2SB operation. Image rejection over the full Band 7 is better than —10 dB. The results are encouraging at a prototype level and some more qualifications tests remain to be done before the full production of the 128 + spare units. The design is suitable for scaling at any other frequencies below Band 7.
Categories:
SIS Mixers
Year:
2003
Session:
2
Full-text:
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Page Number(s):
41-51