Radar system with frequency conversion and corresponding method

A method of controlling a radar system having a base board, the method comprising:

• operatively connecting at least one signal generator to the base board and configuring the at least one signal generator to generate an input signal at a first frequency, the first frequency being in a radiofrequency range;
• operatively connecting at least one transmitting interposer to the base board and configuring the at least one transmitting interposer to receive the input signal from the at least one signal generator;
• providing the at least one transmitting interposer with a transmitting front-end module configured to upconvert the input signal at the first frequency to an outgoing radar signal at a second frequency, the second frequency being greater than the first frequency;
• providing the at least one transmitting interposer with a transmitting antenna module having a plurality of transmitting patches configured to radiate the outgoing radar signal;
• operatively connecting at least one receiving interposer to the base board and configuring the at least one receiving interposer to transmit an output signal to the signal generator;
• positioning the at least one signal generator between the at least one transmitting interposer and the at least one receiving interposer;
• providing the at least one receiving interposer with a receiving antenna module having a plurality of receiving patches configured to capture an incoming radar signal at the second frequency;
• and
• providing the at least one receiving interposer with a receiving front-end module configured to downconvert the incoming radar signal at the second frequency to the output signal at the first frequency, the first frequency being between 20 GHz and 100 GHz and the second frequency being between 60 GHz and 300 GHz.