摘要
针对超高频(UHF)读卡器在实际应用中容易出现盲区而无法顺利读取标签的情况,提出了应用于UHF读写器的数字跳频技术方案。通过上位机软件发送数字跳频参数给FPGA,FPGA根据得到的参数对集成锁相环芯片Si4133、功率放大器RF2173及外设进行配置,得到数字跳频的载波信号。测试结果证明,该方案应用于UHF读卡器项目中,能顺利读到标签。
Aiming at the problem that it is difficult to read the label because of blind spots in practical applications of ultra-high frequency （UHF） reader, a digital frequency-hopping technology for UHF reader is proposed. Digital frequency-hopping parameters are sent to FPGA by host computer software, and integrated PLL Si4133, power amplifier RF2173 and peripherals are configured according to the received parameters by FPGA so as to form digital frequency-hopping carrier signals. Test results show that the labels are read success- fully using the scheme in UHF reader project.
出处
《单片机与嵌入式系统应用》
2012年第11期46-48,共3页
Microcontrollers & Embedded Systems
作者简介
陈小军（硕士），主要研究方向为FPGA、超高频RFID和嵌入式系统；
张红雨（高级工程师），主要研究方向为射频自动识别、物联网和嵌入式技术。
