Radar transmitter/receivers

Details Radar transmitter/receivers Radar transmitter/receivers

1995-05-17

1996-12-24

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Return signal controls external device

Radar mounted on and controls land vehicle

342175, 455327, G01S 1393, G01S 728

Patent

active

055877133

ABSTRACT:
A radar transmitter/receiver arrangement for use, for example, in automotive vehicle control in which R.F. energy from a frequency modulated oscillator is applied to an antenna for transmission and to one input of a mixer by way of a rat-race device, and RF energy reflected from a target and received at the antenna is applied to another input of the mixer by way of the rat-race device.

REFERENCES:
patent: 3870960 (1975-03-01), Hallford et al.
patent: 3955194 (1976-05-01), Chua
patent: 4377005 (1983-03-01), Marchand et al.
patent: 4492960 (1985-01-01), Hislop
Millimeter-Wave Components and Subsystems Built Using Microstrip Technology, "8099 IEEE Transactions on Microwave Theory and Techniques", David A. Williams, 39, 1991 May, No. 5, New York, pp. 768-774.
Unilateral Microstrip Balaned And Doubly Balanced Mixers, 1989 IEEE MTT-S Digest, Reinhard Knochel, et al., Technische Universitat Hamburg-Harbutg, pp. 1247-1250.
Up/Down Mixers For Satellite Communications Utilizing Rat-Race Circuits, Makoto Hasegawa, et al., pp. 747-752.
A Novel and Inexpensive Short Range FM-CW Radar Design, Jurgen Kehrbeck, et al., IEE International Conference, Oct. 12-13, 1992, pp. 288-291, Abstract, p. 67.

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