The design of transmitting antenna arrays with a modular aperiodic architecture for far-field wireless power transmission (WPT) is addressed in this work. The synthesis of the subarray layout and of the subarrays weights is carried out to maximize the power transmission efficiency, while guaranteeing the full aperture coverage with simple domino-shaped tiles. Two design methodologies, one enumerative and one optimization-based, customized to the synthesis of small and larger apertures are presented. The best tiled array configuration is obtained through the maximization of the beam collection efficiency (BCE) for a given collection area where the receiving rectenna system is assumed. A set of representative numerical examples, including both ideal and real antenna models, is shown to prove the effectiveness of the proposed architectural solution as well as of the clustering methods. Analyses considering different array dimensions and sizes of the collection area, when scanning the beam off-boresight also along diagonal directions, are given to assess the performance of the proposed solutions.

中文翻译：

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用于远场无线电力传输的多米诺平铺平面阵列的最大 BCE 合成

在这项工作中解决了具有用于远场无线电力传输 (WPT) 的模块化非周期性架构的发射天线阵列的设计。进行子阵列布局和子阵列权重的综合，以最大限度地提高电力传输效率，同时保证用简单的多米诺骨牌形瓦片实现全孔径覆盖。介绍了两种设计方法，一种是基于枚举的，一种是基于优化的，针对小孔径和大孔径的合成进行定制。对于假定接收整流天线系统的给定收集区域，通过最大化波束收集效率 (BCE) 获得最佳平铺阵列配置。一组具有代表性的数值例子，包括理想和真实天线模型，证明了所提出的架构解决方案以及聚类方法的有效性。分析考虑到不同阵列尺寸和收集区域的大小，当也沿对角线方向扫描离轴光束时，给出了评估所提出解决方案的性能。