A control circuit for active metasurface based on varactor diode is designed in this paper. By varying the reverse bias voltage on the varactor diode, the designed circuit can regulate the additional ...

This feature makes them attractive for parametrically time-varying circuits when low distortion is desired. However, hyperabrupt-junction diodes are inadequately represented by standard reverse-bias ...

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Andy recommends favorite resources for basic op amp circuits and includes a portion of TI's AN-20. Test your knowledge with our op amp quiz; answer explanations are included.