MIXER FOR REJECTING HARMONIC

摘要

PURPOSE: A harmonic removal mixer is provided to remove a harmonic signal as converting an RF signal into an IF signal, by controlling current driving capability of each NMOS transistor. CONSTITUTION: A first integration part(100) includes an eleventh current signal supply unit(110), a twelveth current signal supply unit(120) and a thirteenth current signal supply unit(130). The eleventh current signal supply unit provides a phase 0° current signal. The twelveth current signal supply unit provides a phase 45° current signal. The thirteenth current signal supply unit provides a phase 90° current signal. A second integration part(200) includes a twenty first current signal supply unit(210), a twenty-second current signal supply unit(220) and a twenty-third current signal supply unit(230). The twenty-first current signal supply unit provides a phase 180° current signal. The twenty-second current signal supply unit provides a phase 225° current signal. The twenty-third current signal supply unit provides a phase 270° current signal. A first amplifier part(1100) amplifies a current signal transferred through the first and the second integration part, and outputs an in-phase positive output signal or an in-phase negative output signal.