Title:
SLOW-WAVE CIRCUIT, TRAVELLING-WAVE TUBE, AND TRAVELLING-WAVE TUBE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/172312
Kind Code:
A1
Abstract:
Provided is a slow-wave circuit and the like that contribute to achieving a wide band while reducing energy loss. The slow-wave circuit is provided with: a waveguide for transmitting electromagnetic waves, the waveguide including a meandering portion in which a first turned-back portion and a second turned-back portion turned back on the opposite side to the first turned-back portion are alternately repeated; and a beam hole for transmitting an electron beam, the beam hole extending in a predetermined direction and penetrating through the meandering portion. The beam hole penetrates through the meandering portion with a part of the beam hole disposed beyond the first turned-back portion.
Inventors:
NAKANO TAKASHI (JP)
Application Number:
PCT/JP2019/008864
Publication Date:
September 12, 2019
Filing Date:
March 06, 2019
Export Citation:
Assignee:
NEC NETWORK & SENSOR SYS LTD (JP)
International Classes:
H01J23/24
Domestic Patent References:
| WO2017154987A1 | 2017-09-14 | |||
| WO2017104680A1 | 2017-06-22 |
Foreign References:
| CN104576266A | 2015-04-29 | |||
| US20120081003A1 | 2012-04-05 |
Other References:
MASSOOD TABIB-AZAR ET AL.: "Microplasma Traveling Wave Terahertz Amplifier", IEEE TRANSACTIONS ON ELECTRON DEVICES, vol. 64, no. 9, September 2017 (2017-09-01), pages 3877 - 3884, XP011658799, doi:10.1109/TED.2017.2732446
Attorney, Agent or Firm:
KATO, Asamichi (JP)
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