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:
Oct. 17, 2017
Filed:
Nov. 24, 2015
Applicant:
Skyworks Solutions, Inc., Woburn, MA (US);
Inventors:
David Bowie Cruickshank, Rockville, MD (US);
Brian Murray, Cork, IE;
Assignee:
Skyworks Solutions, Inc., Woburn, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/387 (2006.01); H01F 7/02 (2006.01); H01P 1/38 (2006.01); H01P 1/36 (2006.01); H01P 1/39 (2006.01); H04B 1/48 (2006.01);
U.S. Cl.
CPC ...
H01F 7/0273 (2013.01); H01P 1/36 (2013.01); H01P 1/38 (2013.01); H01P 1/387 (2013.01); H01P 1/39 (2013.01); H04B 1/48 (2013.01); H04B 2001/485 (2013.01);
Abstract
Apparatus and methods related to ferrite based circulators are disclosed. A ferrite disk used in a circulator can be configured to reduce intermodulation distortion when routing radio-frequency signals having closely spaced frequencies. Such a reduction in intermodulation distortion can be achieved by adjusting magnetization at the edge portion of the ferrite disk. By way of an example, a ferrite disk with a reduced saturation magnetization (4PiMs) edge portion can reduce intermodulation distortion. Example configurations with such a reduced 4PiMs edge portions are disclosed.