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:
Dec. 26, 2023
Filed:
Mar. 20, 2020
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Fabien Mesquita, Limhamn, SE;
Stefan Andersson, Flyinge, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
An antenna interface arrangement is disclosed for cancellation of a transmit signal at a receiver port of a transceiver. The antenna interface arrangement comprises a distributed transformer and an impedance. The distributed transformer has a primary side winding connectable to an antenna port of the transceiver and having a first part () and a second part (), a first secondary side winding () connectable to a transmitter port of the transceiver and having a first inductive coupling to the first part of the primary side winding, and a second secondary side winding () connectable to the receiver port of the transceiver and having a second inductive coupling to the second part of the primary side winding. The impedance () is connected between the first secondary side winding and the second secondary side winding. The first and second inductive couplings are adapted to provide a first version of the transmit signal at the receiver port, and the impedance is adapted to provide a second version of the transmit signal at the receiver port, for cancelling the first version of the transmit signal. In some embodiments, the antenna interface arrangement is also for cancellation of a received signal at the transmitter port of the transceiver. Corresponding transceiver and communication device are also disclosed. In some embodiments, the antenna interface arrangement is also for cancellation of a received signal at the transmitter port of the transceiver. Corresponding transceiver and communication device are also disclosed.