Title:
DIRECTIONAL COUPLER, WIRELESS COMMUNICATION APPARATUS, AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2020/189130
Kind Code:
A1
Abstract:
Provided is a directional coupler that is provided with: a main line that transmits a signal from a first terminal to a second terminal; a sub line that is coupled with the main line and from which part of the signal is extracted to a third terminal; a first switching unit that switches a connection destination of the third terminal between one end and another end of the sub line; a first impedance adjustment unit that is provided between the one end of the sub line and the ground, and switches impedance in accordance with the frequency of the signal; a second impedance adjustment unit that is provided between the other end of the sub line and the ground, and switches impedance in accordance with the frequency of the signal; and a resonant circuit unit that is provided between the first switching unit and the third terminal, and switches impedance of the third terminal in accordance with the frequency of the signal.
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Inventors:
SUGAWARA YOSHIKI (JP)
IIDA YUKIHITO (JP)
SUDA SATOSHI (JP)
IIDA YUKIHITO (JP)
SUDA SATOSHI (JP)
Application Number:
PCT/JP2020/006007
Publication Date:
September 24, 2020
Filing Date:
February 17, 2020
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H01P5/02; H01P5/18; H03H7/52; H04B1/40
Domestic Patent References:
| WO2016158314A1 | 2016-10-06 | |||
| WO2016121455A1 | 2016-08-04 |
Foreign References:
| JP2011061440A | 2011-03-24 | |||
| JP2013046305A | 2013-03-04 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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