AMPLIFIER BYPASS CIRCUIT WITH DIODE

摘要

PROBLEM TO BE SOLVED: To prevent an intermodulation distortion caused by over-amplification in a transmitter in a CDMA(code division multi-access) system. SOLUTION: The system is provided with an RF circuit which includes an amplifier circuit and a bypass circuit bypassing the amplifier. The bypassing circuit is formed by capacitors C3 and C4 being suitable for an RF characteristic and a diode D1 and is controlled to form a route for bypassing the amplifier in order to avoid the intermodulation distortion caused by the overdriving of the amplifier.