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:
Sep. 08, 2015
Filed:
May. 18, 2011
Thomas Bauer, Munich, DE;
Andreas Detlefsen, Eichenau, DE;
Stephan Bolze, Munich, DE;
Ralph Durner, San Diego, CA (US);
Thomas Bauer, Munich, DE;
Andreas Detlefsen, Eichenau, DE;
Stephan Bolze, Munich, DE;
Ralph Durner, San Diego, CA (US);
EPCOS AG, Munich, DE;
Abstract
A SAW filter has two DMS tracks. Each DMS track includes six converters, with two converters each acting as input or output converters. The two DMS tracks are electrically connected in series by way of four pairs of coupling converters and the associated coupling lines. A common inner ground line is provided between the two DMS tracks, which extends over the entire length of the DMS tracks and crosses the coupling lines. The input converters of the first DMS track are connected to an asymmetrical port, while the output converters of the second DMS track are connected to a symmetrical port.