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.

随着毫米波/微波电路集成密度的提高，电路元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。 有越来越多的需求，数值方法，将准确，有效地预测和分析的相互作用，并最终提供最佳设计和原型，以满足性能和EMC的要求。 本计画提出一种混合网格、混合积分方程法，以精确且有效率地模拟微波电路。 该模型的一个特点是采用三角形-四面体混合网格（或四边形-六面体混合网格）进行几何离散。 这允许在复杂结构中的金属表面和介电区域的保形和精确建模。 混合曲面和体积积分方程的制定和解决使用的矩量法。 系统条件的减少和收敛速度的调查将是一个重要的部分，建议的研究，以确保稳定和误差易处理的解决方案。 多层快速多极子方法将实现实现计算效率。 它的成功实现将使全波微波电路仿真从电路板级发展到系统级。 此外，由于许多物体本质上是由导体和金属组成的，因此本研究开发的混合网格和混合积分方程方法也适用于广泛的其他应用，如EMC/EMI仿真，材料涂覆目标的雷达散射计算，以及预测射频设备与人体的电磁相互作用。这项研究将与PI的学术研究相结合。通过建立虚拟实验室，让学生对各种电磁散射和辐射问题进行交互式仿真。 教学活动旨在鼓励本科生参与工程设计和模拟，并将被用作演示，以吸引年轻人（谁是明天的潜在工程师）的兴趣。 该项目的成功将为未来的高速和微波印刷电路的CAD设计和原型设计提供一种新的独特工具。 它也将为大学生提供一个新的机会和独特的工具，以探索和了解微波印刷结构的特性。