权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

A Basic Research on Design Approach of Uniplanar Wave Guides for Millimeter-Wave Integrated Circuits and Leakage Effect on Their Wave Guides

毫米波集成电路单平面波导设计方法及其波导泄漏效应的基础研究

基本信息

批准号：
63550261
负责人：
SHIGESAWA Hiroshi
金额：
$ 1.47万
依托单位：
Doshisha University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1988
资助国家：
日本
起止时间：
1988 至 1990
项目状态：
已结题

项目摘要

The Printed-circuit lines (or wave guides) considered in this research are microstrip line, slot line and coplanar wave guide. Slot line and coplanar wave guide, furthermore, have several variants. The conductors on these lines may be finite or infinite in lateral extent, and the lines may be conductor backed or simply rest on a dielectric substrate.Under appropriate conditions, all of these lines, in one way or another, will leak power above some critical frequency. We were the first to discover this new leakage effect, in which the power will radiate away in the lateral direction at an angle that will change as the frequency is varied, and with a leakage rate that is also frequency sensitive. Furthermore, it is the dominant mode on these lines that becomes leaky, contrary to general expectations.The manner in which the dominant mode becomes leaky, and the critical frequency at which this occurs, are different for each of the guiding structures. Nevertheless, the basic physical idea c … More ommon to all these cases is quite simple. In this research, we have explained it qualitatively and with numerical examples, providing experimental results that prove our theory.The present research also discusses a new mode-coupling effect. It has been appreciated that modes on printed-circuit wave guides can interact with the modes of the box or package in which they are placed, and that this interaction will produce mode-coupling effects. The significant difference in the present work is that the coupling effect occurs even though no box or package is introduced. This new coupling, which involves the dominant mode, has not been recognized before in the literature, nor has attention been paid to the newly identified mode that causes the coupling. As an example, we report such a mode-coupling effect that occurs on conventional coplanar wave guides of finite width.The electromagnetics involved in the new leakage effect and the modecoupling effect discovered in this research are very interesting in its own right, but the practical implications, in the form of cross talk and power loss in integrated circuits, and pulse distortion for ultrafast pluses, can be serious. Less

本研究中考虑的印刷电路线（或波导）有微带线、槽线和共面波导。此外，槽线和共面波导具有若干变型。这些线路上的导体在横向范围上可以是有限的或无限的，并且这些线路可以是导体背衬的或简单地搁置在电介质衬底上。在适当的条件下，所有这些线路都将以这样或那样的方式泄漏高于某个临界频率的功率。我们是第一个发现这种新的泄漏效应的人，其中功率将以随频率变化而变化的角度在横向方向上辐射出去，并且泄漏率也是频率敏感的。此外，与一般预期相反，这些线上的主导模式变得泄漏。主导模式变得泄漏的方式以及发生这种情况的临界频率对于每个引导结构是不同的。然而，基本的物理概念c ...更多信息所有这些案件的共同点都很简单。在本研究中，我们用数值例子定性地解释了这一现象，并用实验结果证明了我们的理论，并讨论了一种新的模式耦合效应。已经认识到，印刷电路波导上的模式可以与放置它们的盒子或封装的模式相互作用，并且这种相互作用将产生模式耦合效应。在目前的工作中的显着差异是，耦合效应发生，即使没有盒子或包被引入。这种新的耦合，其中涉及的主导模式，还没有认识到以前在文献中，也没有注意到新确定的模式，导致耦合。作为一个例子，我们报告这样一个模式耦合效应，发生在传统的共面波导的有限宽度。在本研究中发现的新的泄漏效应和模去耦效应所涉及的电磁学是非常有趣的，在其本身的权利，但实际的影响，在集成电路中的串扰和功率损耗的形式，和超快脉冲的脉冲失真，可以是严重的。少