Patent ID: 8981991
Filing Date: 2015-03-17
Classification: G01S

Abstract:
1. A mixer assembly for a radar sensor for a motor vehicle, comprising: power splitters; an I mixer and a Q mixer which are connected in parallel branches between an oscillator port and an RF port with the aid of the power splitters; first and second switches, a respective one of the first and second switches being situated between an associated one of the power splitters and the Q mixer, each of the first and second switches allowing a signal arriving from the associated power splitter to be selectively decoupled from the Q mixer and switched to an associated one of first and second high-frequency grounds; and first and second transformation elements, each one of the first and second transformation elements being situated between an associated one of the first and second high-frequency grounds and a respective node point of an associated one of the power splitters, each transformation element transforming the associated high-frequency ground into an open line at the respective node point, wherein the first and second switches are switchable to a switch configuration by which the Q mixer is disconnected completely from the oscillator port and the RF port.