CAREER: Integrated Circuits for Ultra High Speed Communications

职业：超高速通信集成电路

• 批准号: 0239343
• 负责人: Ali Hajimiri
• 金额: $ 40万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-06-01 至 2009-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0239343&HistoricalAwards=false
• 关键词: CAREER; Integrated; Circuits; Ultra; Speed

0239343HajimiriIt is widely accepted that high-speed communications will remain one of the major fields of studies in the foreseeable future. Communications (wireless or wireline) are affected by many parameters, but it is essentially the limitations of the physical layer that determine its speed and flexibility. While a large amount of effort has been dedicated to development of new substrates and techniques at the physical layer, high speed and low power communication systems and circuits are facing the physical limitations of the devices and substrates used. This is particularly the case, in integrated systems and circuits, where non-dominant effects of the past are becoming dominant to haunt Moore's law for high-speed circuits. While the number of on-chip transistor increases, the inevitable limitations of the scaling process are creating limitations that cannot be easily remedied. These effects have completely changed the design space and have made it more difficult to substantially increase the bandwidth and the speed of such systems using the conventional design techniques. These limitations are partly due to the levels of abstraction defined to facilitate the design process in the past, that have unfortunately lost their effectiveness in the light of the new constraints. Still the silicon-based technologies are the most promising technology for the next generation of ultra-high speed communication systems operating at tens of gigaherz. However, before this promise is realized in a practical system, a set of key research challenges need to be addressed. In this proposal, the PI plans to investigate several of the system, circuit, device, and simulation challenges, as well as the general impact of the integration of communication systems.During the five year span of this proposal, he will continue to study many aspects of ultra high-speed silicon-based integrated circuits, emphasizing both their relevance to the practical integrated communication systems and circuits that will be developed in the near future, as well as their ability to develop new science and knowledge with implications beyond the initial problem. The main topics to be studied include: 1. noise processes in integrated communication systems, 2. distributed circuits for ultra high-speed wireless and wireline communications, 3. new transceiver architectures and concepts, 4. new device structures.The PI joined academia because of his strong belief that education is perhaps the only real long-term solution to the primary problems faced by human society. Education is one of the primary human activities making learning and teaching two sides of the same coin. Thus, as an educator, whether in the classroom, solving theoretical research problems with graduate students, or in the laboratory helping a student create her complicated setup, the PI has had and will have the opportunity to teach and learn, and to broaden the vision and horizons of, and create new possibilities for, both his students and himself. His philosophy towards his career primarily as an educator is that every form of human interactions can and should be viewed as an opportunity to learn and educate. He has been and will continue to be able to make a broader impact by training and preparing students for their future careers, so that they may take on leadership roles and contribute to society at large. The primary reason for his joining Caltech is the unique opportunity to be a part of the strong link between its tradition in research and an extremely active and energetic student body. Caltech's excellence as a research institution, as well as its unwavering commitment to undergraduate education, make it an excellent place for such an endeavor. Also, the vigor and strength of its undergraduate body combined with the Institute's courage to challenge boundaries make it a perfect place to experiment with difficult and progressive approaches to teaching and education.The main objectives of his educational plan are: 1. to continue teaching undergraduate and graduate level courses, emphasizing the fundamental concepts, encouraging creativity, and focusing on fundamental engineering trade-offs, 2. to continue curriculum development for all levels, trying to address as large an audience as possible, considering the needs of the department, institute, and society at large, 3. continue undergraduate and graduate advising by empowering students to realize their full capabilities.

人们普遍认为，在可预见的将来，高速通信仍将是主要的研究领域之一。通信（无线或有线）受到许多参数的影响，但基本上是物理层的限制决定了其速度和灵活性。虽然大量的努力致力于在物理层开发新的基板和技术，但高速和低功率通信系统和电路正面临所使用的器件和基板的物理限制。在集成系统和电路中，情况尤其如此，在这种情况下，过去的非主导效应正变得主导，以困扰高速电路的摩尔定律。随着片上晶体管数量的增加，缩放过程不可避免的限制正在产生无法轻松弥补的限制。这些效应已经完全改变了设计空间，并且使得使用常规设计技术来显著增加这种系统的带宽和速度变得更加困难。这些限制部分是由于抽象层次的定义，以促进在过去的设计过程中，不幸的是失去了他们的有效性，在新的约束。尽管如此，硅基技术仍然是下一代超高速通信系统中最有前途的技术。然而，在实际系统中实现这一承诺之前，需要解决一系列关键的研究挑战。在这份提案中，PI计划调查几个系统，电路，设备和仿真挑战，以及通信系统集成的一般影响。在这份提案的五年时间里，他将继续研究超高速硅基集成电路的许多方面，强调了它们与不久的将来将开发的实际集成通信系统和电路的相关性，以及他们发展新的科学和知识的能力，其影响超出了最初的问题。主要研究内容包括：1.综合通信系统中的噪声处理，2.用于超高速无线和有线通信的分布式电路，3.新的收发器架构和概念，4. PI加入学术界是因为他坚信教育可能是人类社会面临的主要问题的唯一真实的长期解决方案。教育是人类的主要活动之一，学与教是同一枚硬币的两面。因此，作为一名教育工作者，无论是在课堂上，与研究生解决理论研究问题，还是在实验室帮助学生创建复杂的设置，PI都有机会教和学，并拓宽视野和视野，为他的学生和他自己创造新的可能性。他对他的职业生涯的哲学主要是作为一个教育家是，每一种形式的人类互动可以而且应该被视为一个学习和教育的机会。他已经并将继续能够通过培训和培养学生为他们未来的职业生涯，使他们可以承担领导角色，并为整个社会做出贡献更广泛的影响。他加入加州理工学院的主要原因是独特的机会，成为其研究传统和一个非常活跃和充满活力的学生团体之间的强大联系的一部分。加州理工学院作为一个卓越的研究机构，以及它对本科教育的坚定承诺，使其成为这样一个奋进的好地方。此外，它的本科生机构的活力和力量，加上学院的勇气，挑战边界，使它成为一个完美的地方，实验困难和进步的教学和教育方法。继续教授本科生和研究生课程，强调基本概念，鼓励创造力，并专注于基本工程权衡，2。继续为各级课程开发，努力解决尽可能多的观众，考虑部门，研究所和整个社会的需要，3。继续本科生和研究生的建议，使学生实现他们的全部能力。