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:
Dec. 14, 2021
Filed:
Oct. 01, 2019
Applicant:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Inventors:
Max G. Lagally, Madison, WI (US);
Matthew McLean Dwyer, Madison, WI (US);
Francesca Cavallo, Albuquerque, NM (US);
Daniel Warren van der Weide, Madison, WA (US);
Abhishek Bhat, Madison, WI (US);
Assignees:
Wisconsin Alumni Research Foundation, Madison, WI (US);
The Regents of the University of New Mexico, Albuquerque, NM (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 23/26 (2006.01); H03F 3/58 (2006.01); H01J 25/44 (2006.01); H01J 9/14 (2006.01); H01J 23/24 (2006.01); H01J 25/34 (2006.01);
U.S. Cl.
CPC ...
H01J 23/26 (2013.01); H01J 9/14 (2013.01); H01J 23/24 (2013.01); H01J 25/34 (2013.01); H01J 25/44 (2013.01); H03F 3/58 (2013.01); H01J 2209/012 (2013.01);
Abstract
Traveling-wave tube amplifiers for high-frequency signals, including terahertz signals, and methods for making a slow-wave structure for the traveling-wave tube amplifiers are provided. The slow-wave structures include helical conductors that are self-assembled via the release and relaxation of strained films from a sacrificial growth substrate.