Directional coupler and wireless communication device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9838055
APP PUB NO 20160268668A1
SERIAL NO

15042451

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A directional coupler including a main line, a sub-line, an input terminal, an output terminal, a coupling terminal and an isolation terminal, wherein the main line includes a first main-line section formed on a first layer, and a second main-line section formed on a second layer; the first and the second main-line sections are connected in parallel between the input and the output terminals; the sub-line includes a first sub-line section formed on the first layer, and a second sub-line section formed on the second layer; the first and the second sub-line sections are connected in parallel between the coupling and the isolation terminals; the first main-line section and the first sub-line section are disposed in close proximity to each other to generate electromagnetic coupling; and the second main-line section and the second sub-line section are disposed in close proximity to each other to generate electromagnetic coupling.

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First Claim

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Patent Owner(s)

  • TDK CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mitake, Yukio Tokyo, JP 6 19

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