Invention Grant
- Patent Title: Active notch filter
- Patent Title (中): 有源陷波滤波器
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Application No.: US14709897Application Date: 2015-05-12
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Publication No.: US09595935B2Publication Date: 2017-03-14
- Inventor: Amirpouya Kavousian , Yashar Rajavi , Alireza Khalili , Mohammad Bagher Vahid Far
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Paradice and Li LLP
- Main IPC: H04B3/04
- IPC: H04B3/04 ; H03H7/01 ; H03F1/34 ; H03F1/56 ; H03F3/24 ; H03H7/09 ; H04B1/18 ; H03H7/06

Abstract:
A method and apparatus are disclosed for filtering a signal, such as a transmit communication signal with a configurable notch filter. The configurable notch filter may attenuate a set of frequencies near a selected notch frequency. In some embodiments, the configurable notch filter may include a variable resistor, a variable capacitor, a first inductor, and a second inductor. The variable resistor may be configured to compensate for resistive losses within the configurable notch filter. The variable capacitor may be configured to determine the set of frequencies to be attenuated.
Public/Granted literature
- US20160336915A1 ACTIVE NOTCH FILTER Public/Granted day:2016-11-17
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