Abstract: A flexible wiring board includes a layer including an impedance control line capable of transmitting a high frequency signal and a conductive layer including a conductor positioned along the impedance control line. The flexible wiring board is capable of transmitting high frequency signals well.

Abstract: A flexible wiring board includes a layer including an impedance control line capable of transmitting a high frequency signal and a conductive layer including a conductor positioned along the impedance control line. The flexible wiring board is capable of transmitting high frequency signals well.

Abstract: A first quadplexer receives a transmission signal in a first frequency band from a radio frequency transceiver and outputs the transmission signal to a first antenna, and receives a signal from the first antenna and outputs reception signals in third and fourth frequency bands to the radio frequency transceiver. A second quadplexer receives a transmission signal in a second frequency band from the radio frequency transceiver and outputs the transmission signal to a second antenna, and receives a signal from the second antenna and outputs reception signals in the third and fourth frequency bands to the radio frequency transceiver. The radio frequency transceiver converts a signal from the quadplexer into a baseband signal. A baseband IC subjects baseband signals generated from signals in the same frequency band to MIMO reception processing.