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. 22, 2015
Filed:
Apr. 12, 2010
Applicants:
Pasi Tikka, Munich, DE;
Gerhard Zeller, Munich, DE;
Inventors:
Pasi Tikka, Munich, DE;
Gerhard Zeller, Munich, DE;
Assignee:
EPCOS AG, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 29/10 (2006.01); H01Q 1/50 (2006.01); H01Q 1/52 (2006.01); H01Q 5/314 (2015.01); H04B 1/04 (2006.01);
U.S. Cl.
CPC ...
H01Q 1/521 (2013.01); H01Q 1/525 (2013.01); H01Q 5/314 (2015.01); H04B 1/0458 (2013.01);
Abstract
A front end module for a wireless transmission/reception device has two antennas and two signal paths connected thereto. A mismatch in the antenna is identified by monitoring the transmitted power and the reflected power in the active and passive signal paths and using the powers in a controller to generate a control signal for the antenna tuner. In this case, decreasing isolation between the first and second antennas and the first and second signal paths is identified, and is compensated for using different devices, in order to ensure faster and safer antenna matching.