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Rapid design of microstrip antenna arrays by means of surrogate-based optimisation

机译：通过基于代理的优化快速设计微带天线阵列

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摘要

A technique for rapid simulation driven design of planar microstrip antenna arrays is introduced. It exploits the surrogate-based optimisation paradigm and variable-fidelity electromagnetic (EM) simulations. The design process includes radiation pattern optimisation and matching. Two low-fidelity models are utilised: a coarse-mesh EM model of the entire array and a model of the array based on the simulated single element radiation response combined with the array factor. Both models, after suitable correction, guide the optimisation process towards the optimum of the antenna array high-fidelity model. Design optimisation of a 5 × 5 and 7 × 7 microstrip antenna arrays is conducted and described to demonstrate operation as well as efficiency of the proposed technique. The computational cost of optimised designs is equivalent to a few high-fidelity simulations of the entire array despite a large number of design variables.
机译：介绍了一种用于平面微带天线阵列快速仿真驱动设计的技术。它利用基于代理的优化范例和可变保真度电磁（EM）仿真。设计过程包括辐射图的优化和匹配。利用了两个低保真度模型：整个阵列的粗网格EM模型和基于模拟的单元素辐射响应与阵列因子相结合的阵列模型。经过适当的校正，两个模型都将优化过程引向了天线阵列高保真模型的优化。对5×5和7×7微带天线阵列进行了设计优化，并进行了描述，以证明所提出技术的操作和效率。尽管存在大量设计变量，但优化设计的计算成本相当于整个阵列的一些高保真模拟。

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