An ultra low-power low-cost gaussian impulse generator for uwb applications
An ultra low-power low-cost gaussian impulse generator for uwb applications
复制标题
DOI：
10.1109/icsict.2006.306456
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
H. Xie;X. Wang;A. Wang;B. Qin;H. Chen;B. Zhao
中科院分区：
文献类型：
--
作者：
H. Xie;X. Wang;A. Wang;B. Qin;H. Chen;B. Zhao
设计并测量了一种用于超宽带（UWB）发射机的采用低成本0.18 μ mUMCCMOS工艺的新型全集成超低功率脉宽可调高斯脉冲发生器。高斯脉冲发生器将方波发生器和脉冲形成电路集成在单个芯片中。方波发生器产生具有陡峭上升/下降沿的方波，该方波被馈送到脉冲形成电路。简单的CMOS反相器和NOR块用于高斯脉冲形成，而不是复杂的模拟电路形成，其必须使用电阻器、电容器和电感器（Zheng等人，2002年）。由于该CMOS高斯脉冲发生器的全数字特性，所产生的脉冲宽度很容易从50 ps到几纳秒可调，并且功耗超小。在100 MHz脉冲重复频率下，我们测量了脉宽为800 ps，幅度为48 mV，平均功率为200 μ W的高斯脉冲。脉冲发生器是UWB发射机和接收机的关键部件。该高斯脉冲发生器模块可进一步用于产生超宽带系统所需的高阶高斯单周期脉冲或其他脉冲波形
a new fully integrated ultra low-power pulse width adjustable Gaussian impulse generator using a low-cost 0.18 mum UMC CMOS process was designed and measured for ultra wideband (UWB) transmitter. The Gaussian impulse generator integrates a square-wave generator and an impulse-forming circuitry together in a single chip. The square-wave generator produces a square wave with sharp rising/falling edge, which is fed to the impulse-forming circuit. Simple CMOS inverter and NOR block are employed for the Gaussian impulse formation instead of a complex analog circuit formation, which must use resistor, capacitor and inductors (Zheng et al., 2002). Due to this CMOS Gaussian impulse generator all digital features, the generated pulse-width is easily adjustable from 50ps to several nano seconds and the power consumption is ultra small. We have measured a Gaussian impulse with pulse-width of 800ps, amplitude of 48mV, and average power of 200muW at 100MHz pulse repetition frequency. The impulse generator is a key component in both UWB transmitter and receiver. This developed Gaussian impulse generator building block can be further used to generate higher derivative order Gaussian monocycle pulses or another kind of pulse waveform needed for UWB systems