Ultra wideband radio transmitter, ultra wideband radio receiver, and ultra wideband radio communication method

摘要

Disclosed are ultra wideband radio transmitter, ultra wideband radio receiver, and ultra wideband radio communication method capable of securing higher transfer rate and communication quality than conventional ones while avoiding a band where communication signals are concentrated, and capable of miniaturizing an antenna. In a transmitter, a delay time controller (12) outputs a periodic pulse to matched filters 11-1 and 11-2 when transmission data is 1, and outputs the periodic pulse to matched filters 11-1 and 11-3 when the transmission data is 0. The matched filter 11-1 outputs reference signal, the matched filter 11-2 outputs first data signal ahead of the reference signal, and the matched filter 11-3 outputs second data signal behind the reference signal. An adder (13) adds up these, a mixer (21) frequency-converts output of the adder using a local signal received from a local oscillator (23), and an antenna (6) radiates output of the mixer (21).