Radar systems

A radar system, comprising:

• a first radar chip comprising an output node configured to output an oscillation signal, a first input node coupled to the output node via a first signal line, and a first coupling circuit capable of controllably coupling a selected one of a plurality of first loads to the first input node;
• a second radar chip comprising a second input node coupled to the output node of the first radar chip via a second signal line, and a second coupling circuit capable of controllably coupling a selected one of a plurality of second loads to the second input node;
• and
• a control circuit configured to control the first coupling circuit and the second coupling circuit to sequentially couple at least two different combinations of the first and second loads to the first and second input nodes,
• wherein the first radar chip comprises an analysis circuit configured to determine information indicating a reflected wave component and a forward wave component at the output node of the first radar chip for each of the at least two different combinations of the first and second loads, and
• wherein the analysis circuit is further configured to determine, based on the determined information, whether distributions of the oscillation signal to the first and second input nodes via the first and second signal lines are equal.

A method, comprising:

• outputting an oscillation signal at an output node;
• coupling at least two different combinations of first and second loads to first and second input nodes;
• determining information indicating a reflected wave component and a forward wave component at the output node for each of the at least two different combinations of the first and second loads;
• and
• determining, based on the determined information, whether distributions of the oscillation signal to the first and second input nodes via first and second signal lines are equal.