TX Leakage Cancellation via a Micro Controller and High TX-to-RX Isolations Covering an UHF RFID Frequency Band of 908;914 MHz

摘要

A transmitter (TX) leakage cancellation scheme using a micro controller (MCU) is introduced. This letter highlights an adaptive anti-leakage signal generation via an MCU, which plays the key role in reducing the TX leakage signal level. High transmitter-to-receiver (TX-to-RX) isolation is verified with measurement results.