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:
Sep. 30, 2025
Filed:
Aug. 30, 2023
Applicant:
Anritsu Company, Morgan Hill, CA (US);
Inventor:
Oleksandr Chenakin, Morgan Hill, CA (US);
Assignee:
Anritsu Company, Morgan Hill, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/18 (2006.01); H03B 27/00 (2006.01);
U.S. Cl.
CPC ...
H03B 5/1882 (2013.01); H03B 27/00 (2013.01); H03B 2201/0241 (2013.01);
Abstract
Circuits, methods, and apparatus that can provide oscillator circuits that have reduced phase noise. An example can provide a yttrium-iron-garnet oscillator in a loop with a loop amplifier and a phase-shift circuit. The yttrium-iron-garnet oscillator can act as a resonator. Quadrature outputs of the yttrium-iron-garnet oscillator can drive a phase detector that can provide a control signal to the phase-shift circuit. The phase-shift circuit can then reduce or cancel phase noise in the loop, thereby enabling the loop to provide a reference signal having reduced phase noise.