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:
May. 19, 2015
Filed:
Jul. 12, 2010
Applicants:
Ralf Thomas, Munich, DE;
Franz Kubat, Munich, DE;
Andreas Detlefsen, Eichenau, DE;
Markus Hauser, Feldafing, DE;
Inventors:
Ralf Thomas, Munich, DE;
Franz Kubat, Munich, DE;
Andreas Detlefsen, Eichenau, DE;
Markus Hauser, Feldafing, DE;
Assignee:
EPCOS AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/64 (2006.01); H03H 9/02 (2006.01);
U.S. Cl.
CPC ...
H03H 9/02921 (2013.01); H03H 9/6433 (2013.01);
Abstract
A SAW filter circuit having improved ESD resistance is specified, in which a series interconnection composed of SAW resonators is interconnected between a first signal port and a dual-mode SAW filter port. The static capacitance of the series interconnection is at most four times the static capacitance of the dual-mode SAW filter transducers interconnected therewith.