《表1 WR-5.1和WR-3.4波段的倍频器性能比较》

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《基于分离式二极管的220 GHz高效率倍频器（英文）》

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A 220 GHz frequency doubler based on two discrete Schottky diodes with six junctions altogether has been developed.Influence of diode location and reduced-height waveguide have been discussed for high multiplying efficiency.Through the analysis of junction imbalance and optimization of matching networks，an output power of 32m W and a peak efficiency of 21.5%have been reached at room temperature.The proposed doubler has delivered a high efficiency better than 16%over 214～226 GHz when pumped with 46～164 m W input power，which can be widely used in test instrument and radiometers.