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公开(公告)号：US3622888A
公开(公告)日：1971-11-23
申请号：US3622888D
申请日：1969-04-29
Applicant: THOMSON CSF
Inventor： ROBERT ALAIN , CHARVIER HENRI
CPC classification number: H01P1/175 , G01K11/006
Abstract: An improvement in hetrodyne-type microwave radiometers, comprising a polarization changer for passing, with crossed polarizations, the signals respectively coming from a radio source and a reference source, a first rotator, such as of the Faraday type, operated at low frequency, an mode suppressor and a mixer connected to a local oscillator, wherein a second rotator, such as of the Faraday type producing a constant rotation in the polarization, is arranged between the mode suppressor and said mixer.
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