WIRELESS COMMUNICATION DEVICE AND CARRIER OPPOSITE-PHASE SIGNAL GENERATION METHOD

摘要

PPROBLEM TO BE SOLVED: To provide a wireless communication device capable of further improving the canceling effect of combined carriers. PSOLUTION: When generating an opposite-phase signal of a combined carrier of a sneak carrier from the transmission side, which is contained in a receiving signal, and a carrier reflected from an antenna peripheral environment in order to remove the combined carrier, a carrier canceler 7 branches the signal which is received by an antenna 4, by a coupler 7 and demodulates branched receiving signals into a base band by an orthogonal demodulator 11 and samples and holds DC levels of the demodulated signals, by sampling and holding circuits 12I and 12Q and acquires the information about the amplitude and phase of the combined carrier, on the basis of held DC level signals Ai and Aq by an orthogonal modulator 13 and reproduces the combined carrier through orthogonal modulation. PCOPYRIGHT: (C)2009,JPO&INPIT