Electronic device and radar device

A radar device, comprising:

• an RF transceiver;
• an antenna, coupled to the RF transceiver;
• an operational amplifier, coupled to the RF transceiver;
• a digital signal processor, coupled to the operational amplifier;
• a power converter;
• a circuit board, comprising a first circuit board edge, a second circuit board edge, a first coupling unit and a second coupling portion, wherein the first circuit board edge is parallel to the second circuit board edge, the first coupling unit is located on the first circuit board edge, and the second coupling unit is located on the second circuit board edge, wherein the first coupling unit comprises a plurality of first contacts, and the second coupling unit comprises a plurality of second contacts;
• and
• a U-shaped circuit board structure, comprising a first supporting portion, a second supporting portion, a planar portion, a third coupling unit and a fourth coupling portion, wherein the planar portion comprises a first planar portion edge and a second planar portion edge, the first supporting portion is disposed on the first planar portion edge, the second supporting portion is disposed on the second planar portion edge, the third coupling unit is disposed on the first supporting portion, the fourth coupling unit is disposed on the second supporting portion, the first supporting portion is disposed on the first coupling unit, the third coupling unit is electrically connected to the first coupling unit, the second supporting portion is disposed on the second coupling unit, the fourth coupling unit is electrically connected to the second coupling unit, the planar portion is parallel to the circuit board, and a receiving space is formed between the planar portion and the circuit board, wherein the power converter is disposed on the U-shaped circuit board structure, such that the U-shaped circuit board structure is interposed between the power converter and the digital signal processor;
• wherein the third coupling unit comprises a plurality of first leads, the fourth coupling unit comprises a plurality of second leads, the first leads extend on a first lateral surface of the first supporting portion to a first end surface of the first supporting portion to be connected to the first contacts, and the second leads extend on the second lateral surface of the second supporting portion to a second end surface of the second supporting portion to be connected to the second contacts,
• wherein the power converter is disposed on the U-shaped circuit board structure, and the antenna, the RF transceiver, the digital signal processor and the operational amplifier are disposed on the circuit board.