Title:
DIRECTIONAL COUPLER, HIGH FREQUENCY CIRCUIT AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/085259
Kind Code:
A1
Abstract:
A directional coupler (1) comprises an input terminal (40), an output terminal (44), a detection terminal (41), a main line (20) that is connected to the input terminal (40) and the output terminal (44), a sub line (21), and a capacitor (31), wherein: the sub line (21) and the main line (20) are disposed such that magnetic field coupling and electric field coupling can occur; the sub line (21) is connected to one end of the capacitor (31) and to the detection terminal (41); and the other end of the capacitor (31) is grounded.
More Like This:
| JP2007123972 | DIRECTIONAL COUPLER |
| WO/2019/052102 | COATED REVERSE DIRECTIONAL COUPLER |
| JPH07120888 | [Title of Invention] Multi-sided waveguide coupler |
Inventors:
TOKUDA IKUMI (JP)
Application Number:
PCT/JP2022/041523
Publication Date:
May 19, 2023
Filing Date:
November 08, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01P5/18; H01P1/00; H04B5/02
Domestic Patent References:
| WO2020045429A1 | 2020-03-05 |
Foreign References:
| JP2013162176A | 2013-08-19 | |||
| JP2002280810A | 2002-09-27 | |||
| JP2008078853A | 2008-04-03 | |||
| JP2007096585A | 2007-04-12 |
Other References:
TAVAKOL ARMIN; STASZEWSKI ROBERT BOGDAN: "An impedance sensor for MEMS adaptive antenna matching", 2015 IEEE RADIO FREQUENCY INTEGRATED CIRCUITS SYMPOSIUM (RFIC), IEEE, 17 May 2015 (2015-05-17), pages 379 - 382, XP032818708, DOI: 10.1109/RFIC.2015.7337784
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
Download PDF:
Previous Patent: HYDRAULIC ROTARY MACHINE
Next Patent: METAL OXIDE MANUFACTURING DEVICE AND METAL OXIDE MANUFACTURING METHOD
Next Patent: METAL OXIDE MANUFACTURING DEVICE AND METAL OXIDE MANUFACTURING METHOD