Resonant Circuit with Improved Capacitor Quality Factor
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United States of America Patent
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Issued Date -
Jun 5, 2014
app pub date -
Dec 3, 2012
filing date -
Dec 3, 2012
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Abandoned
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Abstract
A resonant circuit, configured to operate at a resonant frequency, includes a first arrangement providing a first equivalent capacitance ‘C’ and a second arrangement providing a first inductance. The first arrangement includes a quantity of ‘n’ capacitive elements connected in parallel, n being at least two, each of the n capacitive elements having a nominal capacitance approximately equal to C/n. The resonant frequency may exceed 1 GHz, the first equivalent capacitance may be at least 3 pF, and a composite Q factor of the first arrangement may be greater than 800. Whereas a single capacitive element having a capacitance of C may exhibit a Q factor equal to ‘Q1’, the composite Q factor of the first arrangement may be equal to ‘Q2’ where Q2 is substantially higher than Q1.
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