System and method for filter enhancement
AssigneeKumu Networks, Inc.
InventorWilhelm Steffen Hahn
Life of this patent
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Abstract
A system for filter enhancement, preferably including one or more analog taps and a controller, and optionally including one or more couplers. The system is preferably configured to integrate with a filter, such as a passband filter or other frequency-based filter. The system can be configured to integrate with an RF communication system, an RF front end, or any other suitable RF circuitry. A method for filter enhancement, preferably including configuring one or more analog taps, and optionally including calibrating a system for filter enhancement and/or receiving temperature information.
Claims14
A system for filter enhancement, the system configured to be electrically coupled in parallel with a filter, the system comprising:
- an analog tap comprising:
- a variable attenuator;
- a variable phase shifter;
- and
- a delay;
- wherein the variable attenuator, the variable phase shifter, and the delay are electrically coupled in a series arrangement;
- and
- a controller operable to control the analog tap based on a temperature measurement, comprising dynamically tuning the variable attenuator and the variable phase shifter based on the temperature measurement, wherein the controller comprises:
- a temperature sensor operable to sample the temperature measurement;
- an analog-to-digital converter (ADC) configured to receive, from the temperature sensor, an analog temperature signal indicative of the temperature measurement, and to convert the analog temperature signal into a digital temperature signal indicative of the temperature measurement;
- and
- a digital control circuit configured to receive the digital temperature signal from the ADC and to determine, based on the digital temperature signal, a set of control signals operable to control the analog tap.
Dependencies are inferred from the claim text.