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?/4-Transformer Based Harmonic Filter for Optimal Harmonic Impedance Modulation at Millimeter-Wave for High Efficiency Class-F^-1 Power Amplifiers
详细技术说明
The proposed λ/4-transformer based Class-F^-1 load network effectively shapes the voltage and current waveform of the active device and increases the efficiency of the PA. The simple load structure makes it effective at millimeter-wave regime despite low quality (low-Q) of passive components. The effectiveness of the load network is verified with implementation of 2-stage Class-F^-1 PA at 40GHz achieving record measured power added efficiency (PAE) of 43% with saturated output power (PSAT) of 18dBm at 0.13 µm SiGe BiCMOS technology.
国家/地区
美国
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