The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 30, 2023
Filed:
Jun. 30, 2022
Keysight Technologies, Inc., Santa Rosa, CA (US);
Rishi Mohindra, Milpitas, CA (US);
KEYSIGHT TECHNOLOGIES, INC., Santa Rosa, CA (US);
Abstract
A system and method are provided for measuring residual phase noise of a measurement signal using a phase detector including a mixer. The method includes injecting a phase noise spur in a stimulus signal having a known magnitude at a known offset frequency from the stimulus signal carrier frequency; inputting the stimulus signal to a DUT to output a measurement signal; inputting the measurement signal to RF input of the mixer via RF path; inputting the stimulus signal to LO input of the mixer via LO path; mixing the measurement and stimulus signals to provide a residual phase noise signal; measuring actual rejection of stimulus phase noise at the know offset frequency; determining a relative delay between the measurement and stimulus signals in the RF and LO paths based on the actual rejection; and minimizing relative delay between the measurement and stimulus signals to reduce residual phase noise measurement floor.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile