US 12,074,567 B2
Inductor topology for phase noise reduction
Yi-An Li, Sunnyvale, CA (US); Ahmed L. Hussein, San Jose, CA (US); and Yi Zhao, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 2, 2022, as Appl. No. 17/902,669.
Application 17/902,669 is a continuation of application No. 17/479,774, filed on Sep. 20, 2021, granted, now 11,652,444.
Prior Publication US 2023/0086524 A1, Mar. 23, 2023
Int. Cl. H03B 5/08 (2006.01); H03L 7/099 (2006.01)
CPC H03B 5/08 (2013.01) [H03L 7/099 (2013.01); H03B 2200/009 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An inductor comprising:
a shared branch;
a first input branch;
a second input branch substantially parallel to the first input branch and the shared branch;
a first coil coupled to the first input branch and the shared branch, the first coil configured to direct a first portion of a current in a first rotational direction from the first input branch to the shared branch;
a second coil coupled to the second input branch and the shared branch, the second coil configured to direct a second portion of the current in a second rotational direction opposite the first rotational direction from the second input branch to the shared branch; and
a coupler coupling the first input branch to the second input branch.