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:
Sep. 23, 2014
Filed:
Aug. 20, 2010
Ronald M. Gilgenbach, Ann Arbor, MI (US);
Yue-ying Lau, Potomac, MD (US);
David M. French, Ann Arbor, MI (US);
Brad W. Hoff, Alburquerque, NM (US);
John Luginsland, Ithaca, NY (US);
Matthew Franzi, Chazy, NY (US);
Ronald M. Gilgenbach, Ann Arbor, MI (US);
Yue-Ying Lau, Potomac, MD (US);
David M. French, Ann Arbor, MI (US);
Brad W. Hoff, Alburquerque, NM (US);
John Luginsland, Ithaca, NY (US);
Matthew Franzi, Chazy, NY (US);
The Regents of The University of Michigan, Ann Arbor, MI (US);
Abstract
A crossed field device, such as a magnetron or crossed field amplifier, that includes a cathode, an anode, one or more magnetic elements, and one or more extraction elements. In one embodiment, the crossed field device includes an annular cathode and anode that are axially spaced from one another such that the device produces an axial electric (E) field and a radial magnetic (B) field. In another embodiment, the crossed field device includes an oval-shaped cathode and anode that are radially spaced from one another such that the device produces a radial electric (E) field and an axial magnetic (B) field. The crossed field device may produce electromagnetic (EM) emissions having a frequency ranging from megahertz (MHz) to terahertz (THz), and may be used in one of a number of different applications.