Power amplifier based on comb filtering
The invention discloses a power amplifier based on comb filtering. The power amplifier comprises an input port, an input matching circuit, a biasing circuit, a transistor, an output matching circuit,a harmonic suppression circuit and an output port which are sequentially connected; a signal to be am...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a power amplifier based on comb filtering. The power amplifier comprises an input port, an input matching circuit, a biasing circuit, a transistor, an output matching circuit,a harmonic suppression circuit and an output port which are sequentially connected; a signal to be amplified is connected to the input port and is transmitted to the input matching circuit, and the signal is amplified through the biasing circuit and the transistor; and the amplified signal is filtered by the output matching circuit and the harmonic suppression circuit, and the filtered signal is transmitted to a signal receiving device through the output port. According to the invention, higher harmonics of the power amplifier are mainly suppressed; harmonic energy generated by the power amplifier is recovered through combination of the comb-shaped harmonic suppression circuit and the output matching network. The power amplifier is simple in structure, suppresses harmonic components at a load, guarantees the effic |
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