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:
Dec. 06, 2005
Filed:
Nov. 10, 2003
Applicants:
Paul Findley, Cupertino, CA (US);
Jon Tao, Fremont, CA (US);
Gholam-ali Rezvani, San Jose, CA (US);
Inventors:
Assignee:
RF Micro Devices, Inc., Greensboro, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F005/00 ;
U.S. Cl.
CPC ...
Abstract
A differential inductor is formed from branch coils that are staggered with respect to one another rather than concentrically coiled within one another. Each coil is formed from conductive strips. The conductive strips with the largest voltage swings thereon are shielded from one another by conductive strips with lower voltage swings thereon. This shielding allows the effective capacitance of the differential inductor to be lowered, which in turn raises the range of frequencies at which the differential inductor can operate.