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:
Nov. 08, 2022

Filed:

May. 03, 2021
Applicant:

Samsung Electro-mechanics Co., Ltd., Suwon-si, KR;

Inventors:

Kang Ta Jo, Suwon-si, KR;

Seong Jong Cheon, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/01 (2006.01); H03H 9/54 (2006.01); H03H 7/46 (2006.01);
U.S. Cl.
CPC ...
H03H 7/1775 (2013.01); H03H 7/0115 (2013.01); H03H 7/0161 (2013.01); H03H 7/461 (2013.01); H03H 9/542 (2013.01);
Abstract

A frontend module includes a first filter having a passband of a first frequency band, a second filter having a passband of a second frequency band, the second frequency band being higher than the first frequency band, a third filter having a passband of a third frequency band, the third frequency band being higher than the second frequency band, and a sub-filter, connected to the second filter, configured to provide attenuation characteristics for the first frequency band, wherein the second filter comprises a plurality of parallel LC resonance circuits arranged between a ground and different nodes, from among a plurality of nodes between a first terminal and a second terminal, wherein an inductor is connected to a portion of the plurality of parallel LC resonance circuits.


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