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A 1432 GHz SiGe-BiCMOS Gilbert-Cell Frequency Doubler With Self-Adjusted Reduced
提出一种新型基于混频器的频率倍增器，通过自调节减少开关四极管占空比，实现宽带高效频率倍增。
1.5V电源电压，6dB转换增益，5.7dBm Psat，17%效率，14-32GHz带宽
频率倍增器Gilbert-cellSiGe-BiCMOS自调节宽带
▸采用同相信号驱动Gilbert-cell两端口，减少开关四极管占空比
▸通过低频环路自动调节开关四极管偏置电压
▸无需正交信号生成，实现宽带性能优势
Abstract
A novel approach to implement mixer-based fre-
quency doublers is proposed in this article. By driving the
two ports of a Gilbert-cell with in-phase signals, but reduc-
ing the switching-quad duty-cycle, the output current assumes
square-wave shape at twice the input frequency, with enhanced
harmonic conversion gain and free of DC offset. By avoiding
the need of quadrature-signals generation, commonly required
in multiplier-based frequency doublers, the performance advan-
tage of the proposed ap