Invention Application
US20140022143A1 Method of Checking the Matching of an Antenna Connected to a NFC Component and Corresponding NFC Component
有权
检查连接到NFC组件的天线的匹配和相应的NFC组件的方法
- Patent Title: Method of Checking the Matching of an Antenna Connected to a NFC Component and Corresponding NFC Component
- Patent Title (中): 检查连接到NFC组件的天线的匹配和相应的NFC组件的方法
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Application No.: US13938024Application Date: 2013-07-09
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Publication No.: US20140022143A1Publication Date: 2014-01-23
- Inventor: Alexandre Tramoni
- Applicant: STMicroelectronics (Rousset) SAS
- Priority: FR1257123 20120723
- Main IPC: H01Q1/50
- IPC: H01Q1/50
Abstract:
An NFC component includes a first interface that can be used in reader mode and is configured to be connected to an antenna via an impedance matching external circuit. A second interface can be used in card mode and in reader mode and is configured to be connected to the antenna and to the first interface via the impedance matching external circuit. An internal module includes a first detection circuit configured to deliver a first detection signal that represents the phase antenna matching quality when the impedance matching external circuit and the antenna are indeed connected between the first interface and the second interface. The internal module is further configured to deliver a check signal from at least the first detection signal.
Public/Granted literature
- US09209516B2 Method of checking the matching of an antenna connected to a NFC component and corresponding NFC component Public/Granted day:2015-12-08
Information query
