Research of Analysis Method for Very High Speed Integrated Circuits Composed of Distributed and Lumped Elements

分布式集总元件超高速集成电路分析方法研究

• 批准号: 08650435
• 负责人: NISHI Tetsuo
• 金额: $ 1.34万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08650435/
• 关键词: Distributed-constant line; Analysis of distributed circuits; Mixed-type circuits; Nonlinear circuits; Integrated circuits; 分布定数回路; 回路解析; 誘電体フィルタ

(1) We summarized the state of the art of this research subject and classified systematically various analysis methods so far known.(2) We pointed out that both the characteristics impedance function ZETA_0(s) and a bilinear, functionof the phase characteristics rheta(s) of distributed elements have to bc approximated by rational positive real functions. We proposed the method for approximating these quantities by positive real functions. This resulted in better property of convergence than the conventional Pade approximation method.(3) A new transient analysis method for multi-conductor transmission line terminated with lumped-constant elements was proposed and the validity by numerical simulation was shown. The method utilizes multi-dimensional WDF (Wave Digital Filter), which Fettweis proposed for partial differential equation. Our method solved the difficulty arising from the treatment of mixed lumped- and distributed systems.(4) fi new equivalent circuit for a dielectric Alter was proposed, where the equivalent circuit consists.i multiconductor transmission line and lumped constant elements and its element values are determined from experimental results. The total characteristics of the circuit are much coincident with physical results over wide frequency than usual model.(5) The properties of lossless bandpass ladder network composed of only two kinds of resonant sections consisting of lumped- and distributed-elements were investigated and the necessary and sufficient conditions for realization were given.(6) A theoretical lower bound for the ratio of the maximum error of the minimal approximation to that of the the least pth approximation by a rational function is given. Numerical examples on various kind of functions verified that the above lower bound is a good estimation for the actual values.

(1)我们总结了这一研究课题的现状，并对迄今为止已知的各种分析方法进行了系统分类。(2)本文指出，分布元件的特性阻抗函数ZETA_0（s）和相位特性函数Rheta（s）的双线性函数都必须用有理正真实的函数来近似。提出了用正真实的函数逼近这些量的方法。这导致了更好的性能比传统的Pade逼近方法的收敛性。(3)提出了一种新的集总常数元件端接多导体传输线暂态分析方法，并通过数值仿真验证了该方法的有效性。该方法利用Fettwei提出的多维WDF（波数字滤波器）来处理偏微分方程。我们的方法解决了混合集总和分布式系统的治疗所产生的困难。(4)本文提出了介质变换器的一种新的等效电路，它由多导体传输线和集总常数元件组成，其元件值由实验结果确定。在较宽的频率范围内，电路的总体特性与物理结果更为吻合。(5)研究了由集总元件和分布元件组成的两种谐振段构成的无损耗梯形带通网络的特性，给出了实现的充要条件。(6)给出了有理函数最小逼近的最大误差与最小p次逼近的最大误差之比的理论下界。对各种函数的数值例子验证了上述下界是一个很好的估计。

项目成果

西 哲生, 緒方 将人: "トランジスタ回路における直流動作点の安定性に関する一考察" 電子学会技術研究報告. ECT-97. 27-30 (1997)

Tetsuo Nishi、Masato Ogata：“晶体管电路中直流工作点的稳定性研究”IEICE 技术报告 27-30 (1997)。

N.Takahashi, T.Nishi: "The Number of Equilibrium Points and Their Basins of Attraction of Neural Networks with a Kind of Cyclic Connection Matrix" Res.Rep.ISEE Kyushu Univ.Vol.1. 101-104 (1996)

N.Takahashi、T.Nishi：“具有一种循环连接矩阵的神经网络的平衡点数量及其吸引盆地”Res.Rep.ISEE Kyushu Univ.Vol.1。

F.Lu, T.Nishi, T.Komazaki: "A Mixed Lumped- and Distributed-Equivalent Circuit for Dielectric Filters" Res. Rep.ISEE Kyushu Univ.Vol.1. 105-110 (1996)

F.Lu、T.Nishi、T.Komazaki：“介质滤波器的混合集总和分布式等效电路”研究。

M.Ogata, T.Nishi: "A Study on the Stability of Equilibrium Points of Transistor Circuits" Proceedings of NOLTA96. 37-40 (1996)

M.Ogata、T.Nishi：“晶体管电路平衡点稳定性的研究”NOLTA96 论文集。

T.Nishi, K.Matsumoto, N.Okayama: "On the Analysis of Mixed-lumped and distributed-Circuits by Means of WDF" Technical Report of IEICE. Vol.NLP97. 27-34 (1997)

T.Nishi、K.Matsumoto、N.Okayama：“利用 WDF 分析混合集总和分布式电路”IEICE 技术报告。