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:
Jul. 04, 2017
Filed:
Dec. 10, 2015
Qualcomm Incorporated, San Diego, CA (US);
Alireza Khalili, Sunnyvale, CA (US);
Mazhareddin Taghivand, Campbell, CA (US);
Amirpouya Kavousian, San Jose, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A two-walled coupled inductor includes an outer wall and an inner wall separated by a slit. The outer wall has a first width and the inner wall has a second width. The inner wall and the outer wall may be configured to be coupled to oscillator circuitry. The two-walled coupled inductor may include an electrically conductive stub coupled to the outer wall to be coupled to a power supply. A common mode current flows through the outer wall, and the stub if one is present, and a differential mode current flows through both the outer wall and the inner wall, but not the stub. The first and second widths, and dimensions of the stub, may be sized to increase an inductance of the common mode compared to an inductance of the differential mode, thereby reducing phase noise of the inductor-based resonator.