CAREER: A Mixed Mesh and Hybrid Integral Equation Approach for Electromagnetic Simulation of Microwave Circuit

职业：微波电路电磁仿真的混合网格和混合积分方程方法

• 批准号: 0093692
• 负责人: Caicheng Lu
• 金额: $ 37.5万
• 依托单位: University of Kentucky Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0093692&HistoricalAwards=false
• 关键词: CAREER; Mixed; Mesh; Hybrid; Integral

0093692LuWith the increase of the integration density of millimeter-wave/microwave circuits, electromagnetic interactions among circuit components and devices become important factors that affect the signal integrity and system electromagnetic compatibility (EMC). There are growing demands for numerical methods that will accurately and effectively predict and analyze the interactions, and eventually provide means for optimum design and prototyping to meet both performance and EMC requirements. This project proposes a mixed mesh, hybrid integral equation approach for the accurate and efficient simulation of microwave circuits. A unique feature of this new model is to use mixed triangle-tetrahedron mesh (or quadrangle-hexahedron mesh) to discretize the geometry. This allows the conformal and accurate modeling of both the metallic surface and the dielectric regions in a complex structure. The hybrid surface and volume integral equations are formulated and solved using the method of moments. The investigation of system condition reduction and convergence sped-up will be an important part of the proposed research in order to ensure stable and error tractable solution. The multilevel fast multipole method will be implemented to achieve computational efficiency. The successful implementation of it will bring the full-wave microwave circuit simulation to circuit board-level and eventually to system-level. Moreover, as many objects are essentially made up of conductors and dielectrics, the mixed mesh and hybrid integral equation approach developed from this research will also be suitable for a wide range of other applications such as EMC/EMI simulation, radar scattering calculation for material coated targets, and predicting the electromagnetic interaction of radio frequency devices and human bodies.The research will be integrated with the PI's academic teaching activities through the establishment of a virtual experiment lab for students to perform interactive simulation of various electromagnetic scattering and radiation problems. The teaching activities are designed to encourage the participation of undergraduate students in engineering design and simulation, and will be used as demos to attract the interest of young people (who are tomorrow's potential engineers). The success of this project will lead to a new and unique tool for future CAD design and prototyping of high-speed and microwave printed circuits. It will also provide a new opportunity and a unique tool for university students to explore and understand the characteristics of microwave printed structures.

0093692Lu随着毫米波/微波电路集成度的提高，电路元件和器件之间的电磁相互作用成为影响信号完整性和系统电磁兼容性（EMC）的重要因素。 人们对数值方法的需求不断增长，这些方法能够准确、有效地预测和分析相互作用，并最终提供优化设计和原型设计的方法，以满足性能和 EMC 要求。 该项目提出了一种混合网格、混合积分方程方法，用于精确有效地模拟微波电路。 这个新模型的一个独特之处是使用混合三角形-四面体网格（或四边形-六面体网格）来离散化几何形状。 这使得可以对复杂结构中的金属表面和介电区域进行保形且精确的建模。 使用矩量法制定和求解混合表面和体积积分方程。 系统条件减少和收敛加速的研究将是所提出研究的重要组成部分，以确保稳定且易于误差处理的解决方案。 将实施多级快速多极子方法以实现计算效率。 它的成功实施将使全波微波电路仿真达到电路板级并最终达到系统级。 此外，由于许多物体本质上是由导体和电介质组成，因此本研究开发的混合网格和混合积分方程方法也将适用于广泛的其他应用，例如 EMC/EMI 仿真、材料涂层目标的雷达散射计算以及预测射频设备和人体的电磁相互作用。该研究将通过建立虚拟模型与 PI 的学术教学活动相结合。 实验实验室供学生对各种电磁散射和辐射问题进行交互式模拟。 教学活动旨在鼓励本科生参与工程设计和仿真，并将作为演示来吸引年轻人（他们是明天的潜在工程师）的兴趣。 该项目的成功将为未来高速和微波印刷电路的 CAD 设计和原型制作提供一种新的、独特的工具。 它还将为大学生探索和了解微波印刷结构的特性提供新的机会和独特的工具。