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.

Date of Patent:
May. 22, 1990

Filed:

Feb. 28, 1989
Applicant:
Inventors:

George H MacMaster, Lexington, MA (US);

Lawrence J Nichols, Burlington, MA (US);

Assignee:

Raytheon Company, Lexington, MA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ; H01J / ;
U.S. Cl.
CPC ...
330 43 ; 315 393 ;
Abstract

A crossed-field amplifier circuit of the type using a CFA tube with a slow-wave structure for the anode and the cathode, each with an input and an output terminal, and a magnetic field in the axial direction, and signals of the same frequency from a common source and of controlled phase difference and amplitude applied to the input terminals of the anode and cathode slow-wave structures whose fringing fields interact with the electron cloud between the anode and the cathode to form well defined cloud fingers which result in amplification of the input signals to provide at the output terminal of the anode an amplified signal having lower random noise than hitherto available from CFA amplifiers.


Find Patent Forward Citations

MacMaster, George. (1990). Low-noise crossed-field amplifier (U.S. Patent No. 4928070). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4928070

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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