Self-aligning resonator filter circuits

An embodiment of a self-aligning resonator filter circuit includes a tunable resonator having a filter output node, an oscillator having an oscillator output node, a resistance element connected between the oscillator output node and the filter output node when the self-aligning resonator filter cir...

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Bibliographic Details
Main Authors LESTER DAVID P, ZOSO LUCIANO, CHIN ALLAN P
Format Patent
LanguageEnglish
Published 30.03.2010
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Summary:An embodiment of a self-aligning resonator filter circuit includes a tunable resonator having a filter output node, an oscillator having an oscillator output node, a resistance element connected between the oscillator output node and the filter output node when the self-aligning resonator filter circuit is in a tuning mode, and a phase detector loop controller coupled between the oscillator output node and the filter output node. The phase detector loop controller is configured to measure a phase difference across the resistance element, and to adjust the tunable resonator in response to the phase difference.
Bibliography:Application Number: US20080347056