Invention Grant
- Patent Title: Phase-noise reduction technique using frequency-to-current conversion with baseband integration
- Patent Title (中): 使用基带集成的频率到电流转换的相位降噪技术
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Application No.: US13681316Application Date: 2012-11-19
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Publication No.: US08977222B2Publication Date: 2015-03-10
- Inventor: Mohyee Mikhemar , David Murphy , Hooman Darabi
- Applicant: Broadcom Corporation
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: McDermott Will & Emery LLP
- Main IPC: H04B17/00
- IPC: H04B17/00 ; H04B1/10

Abstract:
A circuit for measurement of a phase noise of an oscillator may include the oscillator to generate a first signal having the same oscillation frequency as an instantaneous oscillation frequency of the oscillator. The circuit may include a first circuit that is configured to generate a second signal from the first signal. An instantaneous amplitude of the second signal may be related to the oscillation frequency of the first signal. A second circuit may be configured to integrate the second signal to generate a third signal. The third signal can be a measure of the phase noise of the oscillator. The third signal can be used to cancel some or all of the phase noise of the oscillator.
Public/Granted literature
- US20140141739A1 PHASE-NOISE REDUCTION TECHNIQUE USING FREQUENCY-TO-CURRENT CONVERSION WITH BASEBAND INTEGRATION Public/Granted day:2014-05-22
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