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:
Oct. 14, 2025
Filed:
May. 25, 2023
Infineon Technologies Ag, Neubiberg, DE;
Thomas Obermueller, Linz, AT;
Andreas Schwarz, Öpping, AT;
Stefan Herzinger, Sauerlach, DE;
Bernhard Berger, Freistadt, AT;
Stefan Schmalzl, Sauerlach, DE;
Faisal Ahmed, Linz, AT;
Muhammad Furqan, Linz, AT;
Infineon Technologies AG, Neubiberg, DE;
Abstract
A device may include a receive (Rx) antenna input to couple an Rx antenna to an Rx chain, and a signal coupler to inject the test signal toward the Rx antenna. The device may include an Rx antenna switch to, in a first switch state, cause the Rx antenna to be isolated from the Rx chain and, in a second switch state, permit the test signal to probe the Rx antenna. The Rx chain may measure a phasor of a first baseband signal generated based on a first reflected test signal and a phasor of a second baseband signal generated based on a second reflected test signal. The device may include a control circuit to compute a complex ratio based on the phasors, compute a measured reflection coefficient based on the complex ratio and using a transfer function, and monitor an impedance matching of the Rx antenna.