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:
Dec. 03, 2019

Filed:

Jul. 30, 2018
Applicant:

Avago Technologies International Sales Pte. Limited, Singapore, SG;

Inventors:

Donghyeon Ji, Gyeonggi-do, KR;

Hyungbin Lee, Seoul, KR;

Junghyun Kim, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/687 (2006.01); H01P 5/18 (2006.01); H04B 1/18 (2006.01); H03K 17/693 (2006.01); H03H 7/38 (2006.01);
U.S. Cl.
CPC ...
H01P 5/18 (2013.01); H03H 7/38 (2013.01); H03K 17/693 (2013.01); H04B 1/18 (2013.01);
Abstract

A directional coupler device includes an asymmetric dual directional coupler for receiving a radio frequency (RF) signal and a switching circuit. The asymmetric dual directional coupler includes a main line having an input port and an output port, multiple coupled lines separated from the main line, the coupled lines having different lengths for providing different coupling factors, respectively, where each coupled line has first and second ports. The switching circuit selectively applies one of the different coupling factors of the coupled lines, depending on frequency of the RF signal in relation to a predetermined threshold frequency, while coupling a portion of forward power or reverse power of the RF signal to a coupling reading port, to mitigate power loss in an upper frequency range of the RF signal, while satisfying coupling criteria.


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Ji, Donghyeon. (2019). Wideband dual directional coupler (U.S. Patent No. 10498004). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10498004

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