| 摘要 |
An RFID transponder device (TRX) comprises antenna terminals (RFI1, RFI2, RFO1, RF02) for coupling an antenna system (AS) to the device (TRX). A transmitter (TX) and a receiver (RX) are coupled to the antenna terminals. The device (TRX) comprises at least one damping resistance (RD1, RD2, RD4) connected to at least one of the antenna terminals. The at least one damping resistance is connected, depending on a voltage swing at the antenna terminals during a transmission burst period, either together with a serially connected switch (SW4) in parallel to the antenna terminals, or together with a parallel connected switch between one of the antenna terminals and a terminal of the transmitter or the receiver. A damping control is configured to activate the at least one damping resistance during a damping period after the transmission burst period by controlling the respective switch. |
