Patent ID: 6906660
Filing Date: 2005-06-14
Classification: G01S

Abstract:
1. A radar system including an oscillator constituted by a high frequency IC with a built-in FET, sending out electromagnetic waves to the outside, receiving an echo from a target, and detecting a relationship with said target on the basis of the received echo signal, comprising: a plurality of power supplies for forming respective different output voltages, wherein either of said power supplies is used as a gate power supply of said FET of said high frequency IC, and the other one of said power supplies is used as a drain power supply of said FET; a voltage monitoring means for detecting whether the output voltages of said power supplies are within respective specified ranges or not, and a power supply control means for turning off said drain power supply of said FET among said power supplies when it is detected by said voltage monitoring means that either of output voltages of said power supplies is not within said specified range.