CMOS Closed-Loop Control of MEMS Varactors for Robust Ka-Band Tunable Filters

MJ Asadi, R Jin, G Ding, JCM Hwang… - Journal of …, 2019 - ieeexplore.ieee.org
A closed-loop capacitance sensing and control mixed-signal CMOS circuit with a dedicated
sensor electrode and a proportional-integral controller was designed to have a sensitivity of …

CMOS Control Circuit for Robust MEMS Varactors

MJ Asadi, R Jin, Z Cao, G Ding… - 2019 IEEE Asia …, 2019 - ieeexplore.ieee.org
A CMOS closed-loop control circuit was designed, fabricated, and tested for order-of-
magnitude improvement of the robustness of a MEMS varactor against ambient temperature …