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. 07, 1982
Filed:
Aug. 08, 1980
Dieter R Lohrmann, Lanham, MD (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A self-pulsing microwave generator with a quarter-wave resonator separated y an electron transit space from a field emission cathode is provided. The quarter-wave resonator acts as an anode and a DC voltage is supplied by a discharge capacitor and a DC current source. The application of DC voltage to the resonator causes the resonator to resonate at a selected frequency dependent upon the size and characteristic of the resonator. The discharge capacitor is discharged by the resonator-cathode combination until the voltage drops below the field emission threshold voltage of the cathode at which time the pulse terminates. The resonator is in the shape of a cone to decrease the interelectrode capacitance.