Communications: directive radio wave systems and devices (e.g. – Return signal controls external device – Radar mounted on and controls land vehicle
Patent
1994-07-01
1996-01-23
Tudor, Harold J.
Communications: directive radio wave systems and devices (e.g.,
Return signal controls external device
Radar mounted on and controls land vehicle
342175, 342374, G01S 1391
Patent
active
054868327
ABSTRACT:
Radar apparatus that includes a millimeter wave radar transmitter comprising a flood beam antenna, and a radar signal processor for processing radar return signals to produce radar output signals. An RF sensor comprising a receive antenna includes a plurality of antenna elements, a plurality of respectively coupled to outputs of the plurality of antenna elements and coupled to the transmitter by means of a coupler, a plurality of filter circuits respectively coupled to outputs of the plurality of mixers, a multiplexer coupled to outputs of the plurality of filter circuits that comprises as a multiple input, single output switch for sequentially outputting video signals derived from radar signals received by each of the receive antenna elements, and a lens for imaging radar returns onto each of the plurality of antenna elements. The heart of the present invention is a heterodyne receive antenna that may be used in many applications, including radiometric or radar applications, and the like. The present invention provides for a 35-300 GHz millimeter wave electronic scanning sensor for use in collision avoidance applications, and the like.
REFERENCES:
patent: 4107692 (1978-08-01), Hutcheon
patent: 4150375 (1979-04-01), Ross et al.
patent: 5008678 (1991-04-01), Herman
patent: 5014063 (1991-05-01), Studenny
patent: 5202692 (1993-04-01), Huguenin et al.
patent: 5227800 (1993-07-01), Huguenin
patent: 5248977 (1993-09-01), Lee et al.
patent: 5351077 (1994-09-01), Lee et al.
Brown Charles D.
Denson-Low Wanda K.
Heald Randall M.
Hughes Missile Systems Company
Tudor Harold J.
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