【作者】 杨守军；

【导师】 王志功；

【作者基本信息】 东南大学 ， 电路与系统， 2005， 博士

【摘要】 目前在国内,10Gb/s以上速率的光通信关键芯片复接器还没有人研究。本论文对10Gb/s以上速率的复接器从系统结构、器件模型、电路设计、电路仿真、芯片测试等方面进行研究和探讨。论文深入分析和比较不同复接系统结构,给出适合超高速应用的2:1和4:1复接器结构,首次提出倍频器提供时钟的多阶(或级)复接结构。以法国OMMIC公司的ED02AH工艺为例,阐述晶体管的直流特性、小信号模型以及大信号模型,说明应用晶体管模型时需要注意的问题。并且,还分析了适合超高速集成电路中应用的微带线、接地共面波导、耦合微带线等传输线的结构与特性。论文对2:1复接器和倍频器进行了深入研究,并应用法国OMMIC公司的砷化镓PHEMT ED02AH工艺和SCFL电路结构进行了芯片设计、实现和测试。二倍频提供高速时钟的2:1复接器芯片,其测试结果验证了该结构的可行性。在此基础上,论文中还分别实现了2:1复接器、倍频器两种芯片。测试结果表明,2:1复接器至少可以在24Gb/s速率上正常工作。改进异或门实现的倍频器,不仅在23GHz上得到较好的二倍频测试结果,还在十六倍频上得到结果。论文进一步应用砷化镓PHEMT D01PH工艺,结合射频、微波等领域中的匹配设计方法,设计出的2:1选择器在80Gb/s、90Gb/s、甚至100Gb/s速率上都能正常地工作。论文作了多项开创性工作,填补国内在10Gb/s以上速率复接器研究的空白。对于我国研究超高速集成电路和独立设计开发具有自主知识产权的下一代光传输关键芯片具有重要的学术价值。更多还原

【Abstract】 Until now, there has been no research on MUX (multiplexer) over 10 Gb/s domesticly, which is a key chip in optical transceiver. In this paper, detailed research and discussion are made on the MUX over 10 Gb/s in system structures, device modeling, circuits design & simulation, chip test, etc.In this paper, different structures of MUX are analyzed and compared in detail, and then, a proper one of 2:1 or 4:1 MUX which is fitted to be used over 10 Gb/s, is discussed. Moreover, a MUX structure with the clock supplied by a frequency doubler is firstly presented.Some attentions for circuit’s designer to the DC, AC, and large signal characteristics of GaAS PHEMT are pointed out and illustrated by OMMIC ED02AH technology. Micro strips, grounded coplanar waveguides, and coupled micro strips are also described in some depth for the use in ultra high speed integrated circuits.In this paper, a 2:1 MUX with the clock supplied by a frequency doubler are realized with OMMIC ED02AH technology and SCFL, and its test results verify this structure practicable. Furthermore, another 2:1 multiplexer (without frequency doubler), and frequency multiplier, are also realized independently with the same technology. The test results of the 2:1 multiplexer imply that this chip can work leastly at the speed of 24 Gb/s. For the chip of frequency multiplier, 2 and 16 times of frequency multiplier with 23 GHz output are both gotten by test.At last, by applying matching methods usually used in the fields of RF (Radio Frequency) and MW (Microwave) circuits, a selector is designed with OMMIC D01PH technology. This chip can function well at the speed of 80, 90, and 100 Gb/s.In conclusion, many creative works have been done in this paper.更多还原