用于毫米波无线通讯应用的高能效模数转换器

项目名称： 用于毫米波无线通讯应用的高能效模数转换器

项目编号： No.61604180

项目类型： 青年科学基金项目

立项/批准年度： 2017

项目学科： 无线电电子学、电信技术

项目作者： 諸嫣

作者单位： 珠海澳大科技研究院

项目金额： 19万元

中文摘要： 无线通信60GHz毫米波技术是学术和业界的热门研究方向。模数转换器作为模拟和数字域之间的转换接口，常是通信系统中极为重要的组件。随着CMOS工艺的不断发展，数字信号微处理器的性能变得更加高，所需的模拟数字转换器的性能指标也因此变得具挑战性甚至系统的瓶颈。研发更低功耗、低噪声、更高速的数据转换器变得尤为重要。已有模数转换电路在速度-精度-能效的综合优化和先进纳米CMOS工艺实现的可靠性方面凸显出如下问题：.1.主次时间交织采样前端优化.2.多通路间时间交织采样失配消减.3.后端低功耗模数转换器构架优化.本项目依托国家重点实验室，在相关前期研究基础上，针对上述问题，探索一系列基于纳米CMOS工艺实现的新型模数转换器结构和设计方法，针对毫米波通信系统，实现电路在输入信号带宽、转换速率、能效的平衡优化。研究拟形成具有国际影响的重要成果，对中国标准毫米波通信系统中的模数接口技术提供实际应用和理论支撑

中文关键词： 模数转换器；时间交织；逐次逼近（SAR）；毫米波

英文摘要： Recent years, millimeter wave especially 60GHz wireless communication technology becomes a hot topic either in academy or in industry. As the analog-to-digital converter (ADC) acting as the bridge between analog and digital domain signals, it often a very important building block in the communication systems. Continuing down-scaling of advanced CMOS technology enables more powerful digital signal microprocessors, thus leading to more crucial specifications on the data converter interface circuits and indeed the most challenging bottleneck of many systems. This necessitates high demands on research of low power, high speed and digital noise insensitivity of such interface become much higher. Based on the prior arts of the ADC designs, circuit speed - accuracy - reliability optimization with high energy efficiency in the advanced CMOS technology highlights the following topics:.1.Master-and-slave time-interleaved sampling front-end optimization..2.Alleviation of multi-channels time-interleaved sampling mismatch..3.Architectural optimization on the back-end ADC design..This project relies on the strong background and experience of ADC design from the state key lab, keeps the pace with above cutting-edge ADC design issues, explores new mix-signal circuit design, and optimizes the final result according to the target application. For millimeter wave communication system, optimizing between circuit input bandwidth, conversion rate and energy efficiency. It is expected to publish worldwide influential research, and provide theoretical and practical application support for Chinese standard millimeter wave communication system.

英文关键词： analog-to-digital converter;time-interleaved;successive approximation register;millimeter wave