Title:
DIRECTIONAL COUPLER
Document Type and Number:
WIPO Patent Application WO/2019/189232
Kind Code:
A1
Abstract:
A directional coupler (2) comprises: a main line (11); an auxiliary line (12); a variable terminator (13) which is a variable impedance circuit that terminates one end of the auxiliary line (12); and a variable filter circuit (15) connected to the other end of the auxiliary line (12). The variable filter circuit (15) may include a filter, a bypass pathway, and a switch that is connected to at least one of the filter and the bypass pathway.
Inventors:
TOKUDA DAISUKE (JP)
KIN RYANSU (JP)
SHIGENO YASUSHI (JP)
SHIMIZU KATSUYA (JP)
KIN RYANSU (JP)
SHIGENO YASUSHI (JP)
SHIMIZU KATSUYA (JP)
Application Number:
PCT/JP2019/012956
Publication Date:
October 03, 2019
Filing Date:
March 26, 2019
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01P5/18
Domestic Patent References:
| WO2016158314A1 | 2016-10-06 |
Foreign References:
| JP2011135363A | 2011-07-07 | |||
| JPH09107212A | 1997-04-22 | |||
| US20170324392A1 | 2017-11-09 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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