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:
Oct. 27, 1981
Filed:
Dec. 27, 1979
Ronald E Stegens, Brookeville, MD (US);
Communications Satellite Corporation, Washington, DC (US);
Abstract
A non-magnetized ferrite material is provided as the propagating medium for a microwave transmission line such as a microstrip or stripline transmission line. The transmission system is adapted to provide a 'high pass' filter characteristic by selecting the saturation magnetization of the ferrite as a function of the desired cut-off frequency such that frequencies below the cut-off are absorbed by the ferrite material thereby producing a low reflection coefficient, while frequencies above the cut-off are transmitted with very little attenuation. One of the conductors of the transmission system can further have microwave circuit elements located thereon which provide a second 'filter' characteristic, such as a reactive filter or a tunnel diode. The filter characteristics produced by the ferrite material and the circuit elements combine to produce a desired system filter characteristic.