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:
Jul. 07, 1998
Filed:
Jan. 15, 1997
Kenneth Meade Lakin, Redmond, OR (US);
TFR Technologies, Inc., Bend, OR (US);
Abstract
A coplanar microwave transmission line on a substrate utilizes the interdigital capacitance between overlapped conducting fingers that extend from the conductors of the transmission line to reduce substantially the velocity of electromagnetic waves propagating on the transmission line without introducing prohibitive losses. The arrays of fingers extending from the conductors of the transmission line substantially overlap each other and are relatively densely packed. Layered substrates may be used to provide lower loss and a substantial reduction in velocity, which layered substrates may include layers of dielectric material located both above and below the conductors of the transmission line.