Extended range coverage of an imaging radar system with feed-mounted 94 GHz MIMIC HEMT low noise amplifier and external ILO

An airborne forward-looking radar has been developed and built to provide an image of an airport runway for a pilot who is landing his aircraft in zero- or low-visibility fog. The low transmitted power and the high noise figure of a homodyne FMCW front-end limit the range coverage of 94 GHz imaging...

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Bibliographic Details
Published in1992 IEEE MTT-S Microwave Symposium Digest Vol. ol. 2; pp. 687 - 690 vol.2
Main Authors Bui, L.Q., Alon, Y., Neilson, D.
Format Conference Proceeding Journal Article
LanguageEnglish
Published IEEE 1992
Subjects
Airborne radar
Aircraft
Airports
Feeds
HEMTs
Low-noise amplifiers
MODFETs
Noise figure
Optical imaging
Radar imaging
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Summary:An airborne forward-looking radar has been developed and built to provide an image of an airport runway for a pilot who is landing his aircraft in zero- or low-visibility fog. The low transmitted power and the high noise figure of a homodyne FMCW front-end limit the range coverage of 94 GHz imaging radars to less than 1000 m. Using a combination of a 2-stage MIMIC, 94 GHz high electron mobility transistor (HEMT) low-noise amplifier and external ILO mounted at the feed locations, the improved imaging radar can produce visible runway images up to 3000 m away. The first FMCW runway images are shown to demonstrate the 94 GHz system resolution.< >
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISBN:9780780306110
0780306112
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.1992.188077