Patent Number: 7,714,772

Title: Transmit-receive FM-CW radar apparatus

Abstract: A transmit-receive FM-CW radar apparatus according to one mode of the invention comprises: a mixer for downconverting an IF signal; a switch provided on the input side of the mixer; and a switch controller for controlling the switch on and off in different modes and selecting the IF signal in the different modes for supply to said mixer. A transmit-receive FM-CW radar apparatus according to another mode of the invention comprises: a mixer for downconverting an IF signal; a switch for turning on and off a local signal to be supplied to the mixer; and a switch controller for controlling the switch on and off in different modes and selecting the local signal in the different modes for supply to the mixer.

Inventors: Shono; Masayoshi (Kobe, JP)

Assignee: Fujitsu Ten Limited

International Classification: G01S 7/35 (20060101); G01S 13/58 (20060101)

Expiration Date: 5/11/12018