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. 30, 2024
Filed:
Apr. 20, 2021
Murata Manufacturing Co., Ltd., Kyoto, JP;
Daisuke Tokuda, Kyoto, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
A directional coupler () includes a main line (), a sub-line (), and a termination circuit () that is connected to one end () of the sub-line (), and further includes an adjustment terminal (ADJ), as a lead-out terminal, that is led out from a node (N) between the one end () of the sub-line () and the termination circuit (). The termination circuit () may be formed of a circuit in which a capacitance element () and a resistance element () are connected in parallel with each other, a capacitance value of the capacitance element () may be smaller than a capacitance value with which the directivity of the directional coupler () is optimized and a resistance value of the resistance element () may be larger than a resistance value with which the directivity of the directional coupler () is optimized.