The paper addresses the problem of computationally efficient electromagnetic (EM)‐driven design closure of antenna structures. The foundations of the presented approach are fast kriging interpolation metamodels, utilized for two purposes: (a) producing a good starting point for further parameter tuning, and (b) yielding a reasonable Jacobian matrix estimate to jump‐start the optimization procedure. The models are rendered using available designs, for example, obtained from the previous design work with the same antenna structure. The low cost of design closure is ensured by employing Broyden‐based trust‐region gradient search along with the aforementioned Jacobian initialization. Our methodology is demonstrated using two planar antennas, a dual‐band uniplanar dipole and a quasi‐Yagi with a parabolic reflector, both optimized within wide ranges of operating conditions (center frequencies, the dielectric permittivity of the antenna substrate). The re‐design process requires only a handful of EM analyses of the respective structure. The presented framework can be viewed as a convenient algorithmic tool that capitalizes on the existing information on the structure at hand to enable warm‐start parameter tuning.

中文翻译：

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克里金元模型和设计重用，可快速调整天线结构的参数

本文解决了天线结构计算效率高的电磁（EM）驱动设计封闭问题。提出的方法的基础是快速克里格插值元模型，用于两个目的：（a）为进一步的参数调整提供良好的起点，以及（b）产生合理的雅可比矩阵估计值以启动优化程序。使用可用的设计（例如，从以前的设计工作中使用相同的天线结构获得）来渲染模型。通过采用基于Broyden的信任区域梯度搜索以及上述的Jacobian初始化，可以确保较低的设计关闭成本。我们的方法通过两个平面天线，一个双频带单平面偶极子和一个带有抛物面反射镜的准八木天线进行了演示，两者均在很宽的工作条件范围内（中心频率，天线基板的介电常数）进行了优化。重新设计过程仅需要对相应结构进行少量的EM分析。提出的框架可以看作是一种方便的算法工具，可以利用现有结构上的现有信息来启用热启动参数调整。