Advanced MMIC Receiver for 94-GHz Band Passive Millimeter-Wave Imager

Masaru SATO  Tatsuya HIROSE  Koji MIZUNO  

IEICE TRANSACTIONS on Electronics   Vol.E92-C   No.9   pp.1124-1129
Publication Date: 2009/09/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E92.C.1124
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Section on Recent Progress in Microwave and Millimeter-Wave Technologies and Their Applications)
Dicke-radiometer,  low noise amplifier,  MMIC,  passive millimeter-wave imager,  SPDT switch,  

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In this paper, we present the development of an advanced MMIC receiver for a 94-GHz band passive millimeter-wave (PMMW) imager. Our configuration is based on a Dicke receiver in order to reduce fluctuations in the detected voltage. By introducing an electronic switch in the MMIC, we achieved a high resolution millimeter-wave image in a shorter image collection time compared to that with a conventional mechanical chopper. We also developed an imaging array using MMIC receivers.