摘要
通过对SRD的模型的研究,提出了一种能够减弱该模型非线性特性的模型。利用此模型设计了一款可重构的超宽带皮秒级脉冲发生器。SRD为脉冲产生的核心器件,使用PIN二极管和可调的RC微分电路提供两种不同脉冲波形的输出,并用射频仿真软件ADS对其改变脉冲宽度和波形的机理进行了分析和仿真。理论计算和仿真研究表明,该脉冲发生器能够很容易地同时产生脉冲宽度分别为330 ps和670 ps的高斯脉冲和单周期脉冲。所提出的脉冲发生器能够有效地重构,并且能够产生更加复杂的脉冲形状,例如多周期脉冲。这种脉冲产生方法简化了无芯片射频识别系统的电路结构。
Through the study of SRD model, a method of abating the nonlinearity of the model is proposed. An implementation of a SRD-based wide-band reconfigurable picoseconds impulse generator is designed. This generator uses SRD as the key of pulse generator device and a controllable RC differentiator into which a single PIN diode is insert, which provides two different switchable pulse shaping performances. And the mechanism of how the pulse width is changed is analyzed and simulated by radiofrequency software ADS. The results of simulation and theoretical calculation show that it is easy to implement while generating Gaussian and monocycle pulses with 330 ps and 670 ps pulse width respectively. The proposed pulse shaping method is versatile and can be effectively modified and reconfigured to generate more complicated pulse shapes such as polycycle signals. This paper proposes a simple and effective approach, which drastically simplifies circuit frame of chipless RFID system.
出处
《信息技术与网络安全》
2018年第2期100-103,共4页
Information Technology and Network Security
基金
国家自然科学基金(61671393)
关键词
无芯片射频识别
脉冲发生器
单周期脉冲
阶跃恢复二极管
可重构
chipless radio frequency identification
pulse generator
monocycle pulse
step recovery diode
reconfigurable
