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, 2024
Filed:
Jan. 24, 2022
Applicant:
Thales, Courbevoie, FR;
Inventor:
Frédéric Andre, Vélizy-Villacoublay, FR;
Assignee:
THALES, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 23/12 (2006.01); H01J 23/027 (2006.01); H01J 25/34 (2006.01); H04B 7/185 (2006.01);
U.S. Cl.
CPC ...
H01J 23/12 (2013.01); H01J 23/027 (2013.01); H01J 25/34 (2013.01); H04B 7/18513 (2013.01); H04B 7/18515 (2013.01);
Abstract
A travelling-wave tube comprising a helix joined by posts to a vacuum chamber, each post made of electrically insulating material being covered by an electrically conductive material, of electrical conductivity comprised between 1000 and 100000 S·m−1, over a portion of the post extending from the end of the post joined to the helix to the end of the post joined to the vacuum chamber and corresponding to a height comprised between 10% and 50% of the post.