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Active harmonic filters for integrated radio frequency amplifiers
Active harmonic filters for integrated radio frequency amplifiers
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机译:集成射频放大器的有源谐波滤波器
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摘要
A radio frequency front end circuit includes an output signal transmission line, an amplifier circuit with an input connected to a radio frequency signal source and an output connected to the output signal transmission line. A harmonic suppression circuit is connected to the amplifier circuit, and includes an active circuit element having a frequency-dependent impedance and is tuned as a reflective trap with a negative capacitance for one or more rejection frequency ranges each corresponding to a multiple of a fundamental frequency of a signal generated by the radio frequency signal source.
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