Title:
DIRECTIONAL COUPLER
Document Type and Number:
WIPO Patent Application WO/2022/259447
Kind Code:
A1
Abstract:
This directional coupler comprises 2N (N is a natural number) coupled lines (100) which are arranged and connected in series in the direction of transmission. The coupled lines (100) comprise two first transmission lines (101) and two second transmission lines (102) which are magnetically coupled to one another. The first transmission lines (101) and the second transmission lines (102) have a line length set to a wavelength which equals 1/8N of the design wavelength. The coupled lines (100) which are adjacent to one another in the direction of arrangement intersect and are connected via intersecting lines (103). A capacitor (104) is connected between the intersecting lines (103).
Inventors:
HAMADA HIROSHI (JP)
JO TERUO (JP)
JO TERUO (JP)
Application Number:
PCT/JP2021/022053
Publication Date:
December 15, 2022
Filing Date:
June 10, 2021
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
H01P5/18
Domestic Patent References:
| WO2004034505A1 | 2004-04-22 |
Foreign References:
| JP2014155054A | 2014-08-25 | |||
| JP2017034331A | 2017-02-09 | |||
| JPH01146401A | 1989-06-08 |
Other References:
FINKEL M.; THIERSCHMANN H. R.; GALATRO L.; KATAN A. J.; THOEN D. J.; DE VISSER P. J.; SPIRITO M.; KLAPWIJK T. M.: "Branchline and directional THz coupler based on PECVD SiNx-technology", 2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ), IEEE, 25 September 2016 (2016-09-25), pages 1 - 2, XP033010295, DOI: 10.1109/IRMMW-THz.2016.7758586
Attorney, Agent or Firm:
YAMAKAWA, Shigeki et al. (JP)
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