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. 28, 2015
Filed:
Aug. 15, 2012
Imad Ud Din, Lund, SE;
Stefan Andersson, Lund, SE;
Daniel Eckerbert, Lund, SE;
Henrik Sjöland, Löddeköpinge, SE;
Tobias Tired, Lund, SE;
Johan Wernehag, Malmö, SE;
Imad Ud Din, Lund, SE;
Stefan Andersson, Lund, SE;
Daniel Eckerbert, Lund, SE;
Henrik Sjöland, Löddeköpinge, SE;
Tobias Tired, Lund, SE;
Johan Wernehag, Malmö, SE;
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL), Stockholm, SE;
Abstract
A transceiver front-end of a communication device comprises a frequency blocking arrangement, which may be either a transmit frequency blocking arrangement or a receive frequency blocking arrangement. The frequency blocking arrangement has a blocking frequency interval associated with one of a transmit frequency and receive frequency, and a non-blocking frequency interval associated with the other of the transmit frequency and receive frequency. The frequency blocking arrangement is configured to block passage of signals in the blocking frequency interval between said signal transmission and reception node and either said receiver node or said transmitter node. The frequency blocking arrangement comprises a network of passive components comprising at least one transformer and a filter arrangement adapted to have a higher impedance value in the blocking frequency interval than in the non-blocking frequency interval.