Invention Grant
US08977211B1 Systems and methods for calibrating harmonic rejection in switching mixers
有权
用于校准开关混合器中的谐波抑制的系统和方法
- Patent Title: Systems and methods for calibrating harmonic rejection in switching mixers
- Patent Title (中): 用于校准开关混合器中的谐波抑制的系统和方法
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Application No.: US13774060Application Date: 2013-02-22
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Publication No.: US08977211B1Publication Date: 2015-03-10
- Inventor: Carlo Tinella , Fernando De Bernardinis , Jody Greenberg
- Applicant: Marvell International Ltd.
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: H04B17/00
- IPC: H04B17/00 ; H04B1/10
Abstract:
A system includes a radio frequency (RF) signal path configured to receive an input signal that includes at least one of a test signal and an RF signal. A local oscillator (LO) signal path is configured to supply a LO signal. A mixer includes a first input in communication with the RF signal path and a second input in communication with the LO signal path. A calibration control module is configured to receive an output of the mixer in response to the test signal and to adjust an effective duty cycle of the LO signal in the LO signal path based on the output of the mixer.
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