光伏电池板与网状天线阵列共址用于卫星间能量传输

IF 2.3 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE journal of radio frequency identification Pub Date : 2024-03-06 DOI:10.1109/JRFID.2024.3397575
A. Baris Gok;Diego Masotti;Alessandra Costanzo
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引用次数: 0

摘要

本文研究了在光伏(PV)板上设计和制造光学透明网状贴片天线阵列的增材制造方法。预计小型卫星将在太空中利用这种集成技术实现卫星之间的无线电力传输,同时保持最佳的太阳能发电量,而无需为天线子系统预留额外区域。拟议的天线阵列采用了一种新方法,即去除网格金属化的水平导电条,从而在不影响天线性能的情况下提高透明度。设计了两个频率分别为 2.45 GHz 和 5.8 GHz 的阵列,并讨论了相关的设计选择和问题。天线金属化仅使用垂直条带,线间距为 0.04 美元,这是确保最大透明度和天线性能的最佳折衷方案,使用低成本印刷技术在 110 毫米的硼硅玻璃上印刷。模拟和实验表明,在最高工作频率 5.8 GHz 时,底层光伏金属化图案对天线辐射性能有重大影响。在这种情况下,与预测值相比,天线增益有所下降。通过逆向工程方法,这种影响是通过玻璃基板的有效电磁特性来模拟的,而不是通过对图案布局的考虑。结果表明,这种选择能够对整个系统进行高效而准确的全波仿真,这表明有必要对光伏板和天线进行共同设计,以促进整个系统及其当前辐射特性的准确呈现。
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Co-Location of PV Panel With Meshed Antenna Array for Inter-Satellite Energy Transmission
This paper investigates the design and fabrication, by additive manufacturing, of optically transparent meshed patch antenna arrays atop photovoltaic (PV) panels. This integration is foreseen to be exploited in space by small satellites to enable wireless power transfer among them, while maintaining optimal solar power production, with no need for extra areas for the antenna subsystems. The proposed antenna arrays utilize a novel approach, where horizontal conductive strips of a meshed metallization are removed, to enhance transparency without compromising antenna performance. Two arrays are designed at 2.45 GHz and 5.8 GHz, and the associated design choices and issues are discussed. The antenna metallizations make use of vertical strips only with a line spacing of $0.04\boldsymbol {\lambda }$ , found to be the best compromise to ensure maximal transparency and antenna performance, using low-cost printing technique on 110 mm $\times $ 110 mm borosilicate glass. Simulations and experiments show that the underlying PV metallization patterns have a significant impact on the antenna radiation properties at the highest operating frequency of 5.8 GHz. In this case, a degradation of the antenna gain compared to the predictions is observed. Through a reverse-engineering method, this effect is modeled by the effective electromagnetic characteristics of the glass substrate, rather than by accounting for the pattern layout-wise. It is demonstrated that this choice enables an efficient yet accurate full-wave simulation of the entire system, suggesting the necessity for a co-design of the PV panel and the antenna to facilitate an accurate representation of the entire system and its current radiating characteristics.
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