Cancellation of anti-resonance in resonators

Details Cancellation of anti-resonance in resonators Cancellation of anti-resonance in resonators

2011-06-21

2011-06-21

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Coupling networks

Electromechanical filter

C333S193000, C341S143000, C375S247000, C375S252000

Reexamination Certificate

active

07965157

ABSTRACT:
Briefly, in accordance with one embodiment of the invention, a resonator such as an electromechanical resonator may be coupled with a cancellation network to reduce and/or cancel an anti-resonance effect in the resonator, which may be due to, for example, a static capacitance inherent in the resonator. Cancellation of an anti resonance effect from the resonator response may allow a resonance effect of the resonator to be a predominant effect to allow the resonator to be utilized as a bandpass filter having a relatively higher Q, for example in a bandpass sigma-delta modulator that may be utilized in a digital RF receiver.

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