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:
Feb. 19, 2002
Filed:
May. 24, 1999
Applicant:
Inventors:
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/387 ;
U.S. Cl.
CPC ...
H01P 1/387 ;
Abstract
A magnetic member for nonreciprocal circuit is fitted in a first hole formed in a dielectric substrate and at least one magnetic member is fitted in a second hole formed in a portion of the dielectric substrate , which surrounds the first hole. An electrical conductor is printed on surfaces of the dielectric substrate and the magnetic member for nonreciprocal circuit to form a micro strip line . A grounding conductor is formed on the other surface of the dielectric substrate . Changing the magnetization of the magnetic member for frequency regulation can reversibly perform a regulation of the frequency characteristics of the nonreciprocal circuit.