A diode mixer or ring modulator (corrected circuit, thanks commenters ... The four diodes act as switches between the balanced signal input and the output, and have the effect of reversing ...

Designed to control the frequency of crystal oscillator circuits, the 3022 series of high-ratio, hyperabrupt varactor tuning diodes is designed to deliver a dc bias control voltage from -0.3V to -4V.

As the key goal of their paper was to develop a full-wave rectifier circuit, the researchers first had to boost the performance of their SDs. To do this, they designed the diodes with asymmetric ...