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OUTPUT IMPEDANCE-MATCHING NETWORK HAVING HARMONIC-PREVENTION CIRCUITRY
OUTPUT IMPEDANCE-MATCHING NETWORK HAVING HARMONIC-PREVENTION CIRCUITRY
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机译:具有谐波预防电路的输出阻抗匹配网络
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摘要
An output impedance-matching network for an RF power amplifier die includes a harmonic-prevention circuit that functions like a short circuit at a fundamental frequency of the amplifier and an open circuit at a second harmonic frequency of the amplifier. In certain implementations, the harmonic-prevention circuit has one or more parallel, reactive (LC) legs that resonate at the fundamental frequency and a parallel, reactive (capacitive) leg that causes the harmonic-prevention circuit to resonate at the second harmonic frequency. The harmonic-prevention circuit improves power transfer and efficiency of the RF power amplifier.
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