| 摘要 |
There is disclosed a linearizer in which a main signal inputted to a main amplifier is orthogonally modulated by an orthogonal modulator to allow an upper side band signal or a lower side band signal to appear, the signal is used to perform a distortion compensation control, and a constitution of a side band signal detector is thereby simplified. When a phase of a base band signal from a modulated signal generator is reversed in time division, an appearance position of the side band signal is changed to a lower side from an upper side, or to an upper side from a lower side. Moreover, when the phase of the base band signal is changed at high speed, an amplification property is controlled at high speed.
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