天津工业大学学报Issue(5)：69-73,5.
一种新型超高频射频识别阅读器的信号源设计
Design of a novel signal generator for UHF RFID reader
摘要
Abstract
A UHF RFID reader transmitter using phased array antenna is introduced, and the design of signal generator used for this reader is presented. This signal generator with STM32F407 as the main control chip can produce a signal meeting the requirements of the reader according to the beamforming algorithm and direct digital frequency synthesis technology. The actual measurement results show that each signal’s spurious suppression is -50 dBc in the frequency lower than 1 GHz and the phase noise is -100.6 dBc/Hz at 100 kHz offset. In addition, it can produce modulation signals with 90% modulation depth. The attenuation of the output filter is less than -3 dB with the frequency lower than 100 MHz and greater than -40 dB higher than 300 MHz. The signal generator can be fully applicable to the UHF RFID reader using phased array antenna, which has a very important significance for improving reading distance and widespread use of RFID technology.关键词
射频识别阅读器/直接数字频率合成/信号源Key words
RFID reader/direct digital synthesizer/signal generator分类
信息技术与安全科学引用本文复制引用
陈晓宇,李建雄,赵珊珊,邢梅恩,史伟光,刘崇..一种新型超高频射频识别阅读器的信号源设计[J].天津工业大学学报,2014,(5):69-73,5.基金项目
国家自然科学基金资助项目 （）
