Electronic device with capacitor bank linearization and a linearization method
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United States of America Patent
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May 23, 2017
Grant Date -
Feb 9, 2017
app pub date -
Jan 8, 2016
filing date -
Aug 6, 2015
priority date (Note) -
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Abstract
An electronic device comprises a controllable capacitor bank and a capacitive divider arranged in parallel with the capacitor bank and configured to linearize the capacitor bank in a linearization frequency range of a frequency characteristic of the electronic device. The capacitive divider comprises a series arrangement of a first series capacitance, and a main capacitor bank. A control circuit coupled to one or more control inputs of the capacitive divider and controllable capacitor bank is configured to modify the equivalent capacitance of the capacitive divider and the controllable capacitor bank for providing capacitance steps, each capacitance step being variable over frequency such that for each step a frequency change Δf of the frequency characteristic is maintained constant in the linearization frequency range.
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