The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 2019
Filed:
Mar. 08, 2017
Applicant:
Nec Network and Sensor Systems, Ltd., Fuchu-shi, Tokyo, JP;
Inventor:
Takashi Nakano, Tokyo, JP;
Assignee:
NEC NETWORK AND SENSOR SYSTEMS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 23/24 (2006.01); H01J 25/38 (2006.01);
U.S. Cl.
CPC ...
H01J 23/24 (2013.01); H01J 25/38 (2013.01);
Abstract
A slow-wave circuit is provided with a folded waveguide and a beam hole. The beam hole is arranged between an edge and a center in the direction of width of the folded waveguide. The beam hole is preferably arranged at an edge in the direction of width of the folded waveguide, at a position that does not protrude beyond the folded waveguide. The beam hole is preferably arranged at a position separated by a prescribed distance from the edge in the direction of width of the folded waveguide.