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. 24, 2015
Filed:
Mar. 28, 2015
Far-tech, Inc., San Diego, CA (US);
Xiangyun Chang, Miller Place, NY (US);
FAR-TECH, Inc., San Diego, CA (US);
Abstract
A system comprises: an RF cavity; a main emitter; a floating grid configured to capture a portion of the electron current emitted by the main emitter; and a discharging emitter in electrical contact with the floating grid and configured to discharge the floating grid. The floating grid and the discharging emitter are electrically insulated from the main emitter and from the RF cavity, when the RF cavity is not in operation. The DC bias of the floating grid is adjusted so that the ending emission phase of the electron beam from the floating grid occurs earlier than the starting phase of back-bombardment of the electrons in the RF cavity, thereby suppressing the back-bombardment of the electrons. A floating grid can be also placed between the RF drive grid and the cathode in an IOT, thereby suppressing arcing of the cathode in the IOT.