Radar system, integrated radar circuit and method for a radar system

摘要

A radar system is proposed. The radar system includes a first integrated radar circuit with several first transmission paths and a local oscillator, which is set up to generate a local oscillator signal. The first integrated radar circuit also has a first connection, which is set up to output an oscillation signal based on the local oscillator signal. The radar system also includes one with at least a second transmission path and a second connection. Furthermore, the radar system includes a partially reflective element which is coupled to the first connection via a first line section and to the second connection via a second line section. The partially reflective element is designed to reflect a first portion of the oscillation signal back as a reflected signal via the first line section to the first connection and to forward a second portion of the oscillation signal as a forward signal via the second line section to the second connection. The first integrated radar circuit also has a directional coupler, which is coupled to the first connection via a first gate and is set up to output the reflected signal via a second gate to a signal node of the first integrated radar circuit. The first transmission paths are coupled to the signal node and at least some of the first transmission paths are set up to generate radar transmission signals based on the reflected signal.