Variable capacity composite component
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United States of America Patent
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Sep 29, 2015
Grant Date -
May 22, 2014
app pub date -
Nov 15, 2013
filing date -
Nov 16, 2012
priority date (Note) -
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Abstract
A variable capacity composite component has structures connecting four variable capacitors, for example, to signal terminals in series with bias application terminals of opposite polarities facing each other, connecting a power supply terminal to the bias+ sides of the first and second variable capacitors via a first bias resistance, and also to the bias+ sides of the third and fourth variable capacitors via a second bias resistance, connecting a grounding terminal to the bias− side of the first variable capacitor via a third bias resistance, also to the bias− sides of the second and third variable capacitors via a fourth bias resistance, and also to the bias−sides of the fourth variable capacitor via a fifth bias resistance, and setting the value of the first, second, and fourth bias resistances to one-half the value of the third and fifth bias resistances.
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