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:
Mar. 07, 2000
Filed:
May. 21, 1997
Ronald N Hubbard, Encinitas, CA (US);
Michael L Duhl, San Diego, CA (US);
General Atomics, San Diego, CA (US);
Abstract
A magnetodielectric composition is made of flakes of magnetic material dispersed in a binder at a concentration of about 30 to 60%. The flakes consist of a thin film of magnetic material or alternating thin film layers of magnetic material and insulating material. The flakes do not include a substrate. Consequently, the effective volume concentration of magnetic material in the composition is far greater than with other magnetodielectric materials. The binder is selected to provide a fluent composition for application like paint or a setable composition for formation of sheets and molded structural elements. In use, the composition is effective to reduce the size, weight and volume of electrical devices such as antennas, delay lines, phase shifters and other devices requiring interaction with and/or magnetic response to high frequency radiation.