NXP Semiconductors’ new G2iL and G2iL+EPC Gen 2 chips will enable tags to be turned on or off,be switched into low read range,send tamper alerts or transfer data to microcontrollers.
A single-chip UHF RFID reader transceiver IC has been implemented in 0.18 μm SiGe BiCMOS technology. The chip includes all transceiver blocks as RX/TX RF front-end, RX/TX analog baseband, frequency synthesizer and I2...A single-chip UHF RFID reader transceiver IC has been implemented in 0.18 μm SiGe BiCMOS technology. The chip includes all transceiver blocks as RX/TX RF front-end, RX/TX analog baseband, frequency synthesizer and I2C with fully-compliant China 800/900 MHz RFID draft, ISO/IEC 18000-6C protocol and ETSI 302 208-1 local regulation. The normal mode receiver in the presence of -3 dBm self-jammer achieves -75 dBm 1% PER sensitivity. The linear class-A PA integrated in transmitter has 25 dBm OP1 dB output power for CW. The fully-integrated fractional-N fre-quency synthesizer is designed based on MASH 1-1-1 sigma-delta modulator and 1.8 GHz fundamental frequency LC-VCO for lower in-band and out-of-band phase noise. The measured phase noise is up to -106 dBc/Hz@200 kHz and -131 dBc/Hz@1 MHz offset from center frequency and the integrated RMS jitter from 10 kHz to 10 MHz is less than 1.6 pS. The chip dissipates 330 mA from 3.3 V power supply when transmitting 22.4 dBm CW signal and the PAE of linear PA is up to 26%. The chip die area is 16.8 mm2.展开更多
针对现有技术存在的不足,设计出基于RFID(Radio Frequency Identification,射频识别)技术的智能安防闭锁系统,该系统融合了RFID技术、物联网技术、人工智能技术、自动化控制技术,实现了安防闭锁系统的智能化、自动化物联工作;在设计时,...针对现有技术存在的不足,设计出基于RFID(Radio Frequency Identification,射频识别)技术的智能安防闭锁系统,该系统融合了RFID技术、物联网技术、人工智能技术、自动化控制技术,实现了安防闭锁系统的智能化、自动化物联工作;在设计时,构建出包括设备层、闭锁硬件层、闭锁工作层和管理层的安防闭锁系统,应用支持IEC 61850通信协议的通讯模块进行数据通讯,使得上层管理中心可以直接获取底层RFID设备信息;该系统还设计出包括标签、阅读器、数据管理系统的RFID射频智能锁,通过nRF905射频收发芯片实现安防故障数据的接收和发射,通过设置有D触发器的闭锁控制电路实现故障信号的接收,并控制PWM脉冲动作,执行闭锁动作;试验表明,文章研究的方法响应时间短,计算速度快,准确度高,稳定性好。展开更多
文摘NXP Semiconductors’ new G2iL and G2iL+EPC Gen 2 chips will enable tags to be turned on or off,be switched into low read range,send tamper alerts or transfer data to microcontrollers.
文摘A single-chip UHF RFID reader transceiver IC has been implemented in 0.18 μm SiGe BiCMOS technology. The chip includes all transceiver blocks as RX/TX RF front-end, RX/TX analog baseband, frequency synthesizer and I2C with fully-compliant China 800/900 MHz RFID draft, ISO/IEC 18000-6C protocol and ETSI 302 208-1 local regulation. The normal mode receiver in the presence of -3 dBm self-jammer achieves -75 dBm 1% PER sensitivity. The linear class-A PA integrated in transmitter has 25 dBm OP1 dB output power for CW. The fully-integrated fractional-N fre-quency synthesizer is designed based on MASH 1-1-1 sigma-delta modulator and 1.8 GHz fundamental frequency LC-VCO for lower in-band and out-of-band phase noise. The measured phase noise is up to -106 dBc/Hz@200 kHz and -131 dBc/Hz@1 MHz offset from center frequency and the integrated RMS jitter from 10 kHz to 10 MHz is less than 1.6 pS. The chip dissipates 330 mA from 3.3 V power supply when transmitting 22.4 dBm CW signal and the PAE of linear PA is up to 26%. The chip die area is 16.8 mm2.
文摘针对现有技术存在的不足,设计出基于RFID(Radio Frequency Identification,射频识别)技术的智能安防闭锁系统,该系统融合了RFID技术、物联网技术、人工智能技术、自动化控制技术,实现了安防闭锁系统的智能化、自动化物联工作;在设计时,构建出包括设备层、闭锁硬件层、闭锁工作层和管理层的安防闭锁系统,应用支持IEC 61850通信协议的通讯模块进行数据通讯,使得上层管理中心可以直接获取底层RFID设备信息;该系统还设计出包括标签、阅读器、数据管理系统的RFID射频智能锁,通过nRF905射频收发芯片实现安防故障数据的接收和发射,通过设置有D触发器的闭锁控制电路实现故障信号的接收,并控制PWM脉冲动作,执行闭锁动作;试验表明,文章研究的方法响应时间短,计算速度快,准确度高,稳定性好。
