Directional coupler

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8803633
APP PUB NO 20130241668A1
SERIAL NO

13891075

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Abstract

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In a directional coupler, even when parasitic inductance exists, an increase in device size can be suppressed while obtaining good isolation characteristics. A transmission line type directional coupler includes a main line and a sub line that is coupled to the main line through electric field coupling and magnetic field coupling. The main line includes a signal input port and a signal output port, and the sub line includes a coupling port and an isolation port. A series capacitor is connected to only one of the signal output port and the coupling port.

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Patent Owner(s)

Patent OwnerAddress
MURATA MANUFACTURING CO LTD10-1 HIGASHIKOTARI 1-CHOME NAGAOKAKYO-SHI KYOTO-FU 617-8555

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mukaiyama, Kazutaka Kyoto, JP 12 78
Tokuda, Daisuke Kyoto, JP 8 13

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