用两阶段自动设计天线，先优化像素连接再精细调优。
A Bi-Stage Framework for Automatic Development of Pixel-Based Planar Antenna Structures
- 将天线结构拆解为可优化的像素单元，通过连接关系生成自由拓扑。
- 在宽带和双频单极子天线案例中成功实现性能达标设计。
- 适合需要快速生成高性能天线的工程师或自动化设计研究者。
现代天线的设计是一个融合经验性拓扑选择与参数调优的认知过程。该工作提出一种两阶段自动天线生成框架，通过优化构成辐射体的像素单元间的连接关系来确定自由形态的拓扑结构。第一阶段进行全局连接优化，第二阶段采用代理模型辅助的局部搜索算法对所得拓扑进行精细调优，以满足设计要求。该方法在两个案例中得到验证：宽带和双频单极子天线的设计。结果表明，该框架能够有效减少对工程直觉的依赖，实现高性能天线的自动生成。
原文摘要 · Abstract (English)
Development of modern antennas is a cognitive process that intertwines experience-driven determination of topology and tuning of its parameters to fulfill the performance specifications. Alternatively, the task can be formulated as an optimization problem so as to reduce reliance of geometry selection on engineering insight. In this work, a bi-stage framework for automatic generation of antennas is considered. The method determines free-form topology through optimization of interconnections between components (so-called pixels) that constitute the radiator. Here, the process involves global optimization of connections between pixels followed by fine-tuning of the resulting topology using a surrogate-assisted local-search algorithm to fulfill the design re-quirements. The approach has been demonstrated based on two case studies concerning development of broadband and dual-band monopole antennas.
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