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. 14, 2017
Filed:
Jul. 29, 2013
Applicant:
Epcos Ag, Munich, DE;
Inventors:
Edgar Schmidhammer, Stein an der Traun, DE;
Juha Ellae, Halikko, FI;
Assignee:
EPCOS AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/005 (2006.01); H04B 1/04 (2006.01); H04B 1/52 (2015.01); H04L 5/14 (2006.01);
U.S. Cl.
CPC ...
H04B 1/0475 (2013.01); H04B 1/52 (2013.01); H04L 5/14 (2013.01);
Abstract
A duplexer having good insulation, small geometric dimensions and good decoupling of the transmit signal path from an antenna which may have poor matching is specified. To that end, the duplexer comprises two transmit filters, a receive filter and two 90° hybrids.