Reconstruction possible impedance matching and harmonic filter system

摘要

Frequency of the band where two or more differs, and/or the irregularity type where two or more differs, and/or one PA line-up in order to transmit the signal which possesses the RF power level where two or more differs (210) the tranceiver which is included (200) or the transmitter operation method and the device which are made possible. One PA line-up at least one variable matching circuit (216) and the variable harmonic filter in order alignment adjustable and alignment filtering to do (240) includes the communication signal before the transmission. The variable matching circuit and the variable harmonic filter, on/one which is turned off variable capacity element (2160 and 2400) include at least according to respectively, the low frequency signal being in the midst of transmitting whether, or whether the high frequency signal it is in the midst of transmitting. As for each variable capacity element, one PA line-up, other than frequency signal irregularity and/or the separate direct current terminal and the radio frequency terminal in order to try to be able change RF power level are included.