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The basic research on reasonable analysis and design method for passive microstrip-line circuit

无源微带线电路合理分析与设计方法的基础研究

基本信息

批准号：
09650430
负责人：
HSU Jui-pang
金额：
$ 2.11万
依托单位：
KANAGAWA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09650430/
关键词：
Microwave stripline passive circuit 2-dimensional discontinuity problem Eigenmode expansion method Foster-type equivalent network microwave waveguide Stripline step-type discontinuity problem Stripline junction-type disconinuity problem Rect

项目摘要

The research projects have been carried out to fulfill the original aim of the basic research, although some items are on the way and not yet completed. Obtained results are listed below.1. Analysis of microstrip line and other planar waveguide : Reasonable equivalent network for the analysis of waveguide characteristics(propagation constant and field distribution in the waveguide section) is derived based on slab-mode expansion method and mode matching method. Especially, equivalent network for stripline, NRD guide, groove guide and microstrip line have been derived and practically applied for calculation of waveguide characteristics with success. Essential problem in this analysis ins number of slab-mode to be taken into account.2. 2-dimension waveguide discontinuity problems : These problems are treated by mode expansion and mode matching method, which leads to the equivalent mode-corresponding multi-transmission line for the waveguide section and two types of equivalent network for … More discontinuity section, (1) multi-port ideal transformer for the step discontinuity and (2) Foster-type equivalent network for junction discontinuity. Practical equivalent network for stripline and rectangular waveguide discontinuity are derived and used for analysis, where right angle bend with square shaped/slantwise corner cut and stripline/H-plane rectangular step discontinuity are treated with success. Based on these results, we can get the confidence that this equivalent network concept can be applied to the analysis of 3-dimensional discontinuity problem.3. Foster-type equivalent network is planned to be used for syntheses of filter network, which cannot be realized during the period of project because of the shortage of time. However, we can get the good perspective to realize the filter by this method, because Foster-type equivalent network is proved to be valid and useful for analysis of junction type discontinuity problem.4. Reasonable equivalent network for the require full band is given by modal analysis, which can be applied for analysis of high-speed microwave digital circuit in future. Less

虽然有些项目正在进行中，但还没有完成，这些研究项目已经完成了基础研究的最初目标。获得的结果如下所示。1.微带线和其它平面波导的分析：基于板模展开法和模匹配法，推导出了用于分析波导特性（传播常数和波导截面内的场分布）的合理等效网络。特别是导出了带状线、NRD波导、槽波导和微带线的等效网络，并成功地应用于波导特性的计算。分析中的关键问题是考虑板振型的个数. 2-一维波导不连续性问题：用模展开和模匹配方法处理这些问题，得到了波导截面的等效模对应多传输线和波导截面的两种等效网络。 ...更多信息（1）阶跃不连续时采用多端口理想Transformer;（2）结不连续时采用Foster型等效网络。导出了带状线和矩形波导不连续性的实用等效网络并用于分析，其中成功地处理了直角弯曲的方形/斜角切角和带状线/H面矩形台阶不连续性。基于这些结果，我们可以确信这种等效网络概念可以应用于三维不连续问题的分析.拟采用福斯特型等效网络进行滤波网络综合，但由于时间的限制，在项目期间无法实现。然而，Foster型等效网络被证明是有效的，对于分析结型不连续性问题是有用的，因此用这种方法实现滤波器具有很好的前景.通过模态分析，给出了满足全频带要求的合理等效网络，为今后高速微波数字电路的分析提供了依据。少