Transmitter/receiver, transmission/reception device, and transmission/reception method

A transmission/reception method executed by a computer by using a transmitter/receiver including a spherical radio wave lens in which a meta-surface converging a desired radio wave which is a transmitting/receiving target is formed and an array antenna that is arranged to face the spherical radio wave lens, and includes antenna units that transmit and receive the desired radio wave which is the transmitting/receiving target and are arranged in accordance with focal positions of the spherical radio wave lens, the method comprising:

• acquiring a reception signal associated with a radio wave received by the transmitter/receiver;
• decoding and outputting the acquired reception signal;
• acquiring a transmission signal directed toward a communication target;
• and
• outputting the acquired transmission signal to an antenna unit configured to transmit the acquired transmission signal toward the communication target.