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.

Date of Patent:
Jun. 17, 2025

Filed:

Oct. 19, 2023
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Rui Tang, Santa Clara, CA (US);

Chenqian Gan, Cambridge, CN;

Zhongning Liu, San Diego, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/34 (2006.01); H01F 41/04 (2006.01); H05K 1/16 (2006.01); H04B 1/525 (2015.01);
U.S. Cl.
CPC ...
H01F 27/346 (2013.01); H01F 41/041 (2013.01); H05K 1/165 (2013.01); H04B 1/525 (2013.01);
Abstract

A substrate that includes at least one dielectric layer and an inductive coupler formed in the at least one dielectric layer. The inductive coupler includes a first inductor and a second inductor. The first inductor is formed in the at least one dielectric layer. The first inductor is configured to be electrically coupled to a transmitter filter and an antenna. The second inductor is formed in the at least one dielectric layer. The second inductor is configured to be electrically coupled to the transmitter filter and ground. The second inductor is configured to provide a path to ground for a rejected signal having a rejected frequency. The second inductor is configured such that the rejected signal traveling through the second inductor causes the first inductor to generate an induced signal that counteracts a leakage signal traveling through the transmission filter.


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