Variable capacitors including tandem movers/bimorphs and associated operating methods
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United States of America Patent
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Jun 4, 2002
Grant Date -
May 9, 2002
app pub date -
May 18, 2001
filing date -
Nov 3, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A variable capacitor is provided having first and second capacitor plates, a tandem mover and an actuator. The first and second capacitor plates are positioned such that the first and second capacitor plates face one another in a spaced apart relationship. The tandem mover is configured to move the first and second capacitor plates in tandem in response to changes in ambient temperature to maintain a consistent spaced apart relationship between the capacitor plates. The actuator is then configured to vary the spaced apart relationship between the first and second capacitor plates in response to an external input. The capacitance of the variable capacitor can therefore be varied by increasing and decreasing the spaced apart relationship between the first and second capacitor plates.
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