Title:
Directional coupler and wireless communication device using it
Document Type and Number:
Japanese Patent JP6358297
Kind Code:
B2
Abstract:
Disclosed herein is a directional coupler that includes a main line configured to transmit a high-frequency signal, a sub line electromagnetically coupled to the main line, and a ground pattern positioned at least partially between the main line and the sub line in a plan view. The sub line includes a low pass filter having an inductance pattern and a capacitor. The ground pattern has an opening that overlaps at least the inductance pattern in a plan view.
Inventors:
Takeshi Ohashi
Application Number:
JP2016163015A
Publication Date:
July 18, 2018
Filing Date:
August 23, 2016
Export Citation:
Assignee:
tdk Corporation
International Classes:
H01P5/18
Domestic Patent References:
| JP2015154373A | ||||
| JP20135076A | ||||
| JP2004311734A |
Foreign References:
| WO2017158974A1 |
Attorney, Agent or Firm:
Mitsuhiro Washito
Ogata Japanese
Yasuyuki Kurose
Ogata Japanese
Yasuyuki Kurose