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Analysis of Planar Arrays using Sudoku Puzzles for Multiple Beamforming

机译：使用数独谜题的平面阵列进行多个波束形成

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摘要

In several wireless applications involving communication and radar systems, the concept of Frequency Diverse Arrays (FDA) is becoming a popular choice. Those types of arrays provide greater flexibility than the conventional phased arrays in beam steering and beamforming applications. Even though phased arrays have shown success in beam steering and beamforming with respect to flexible beam scanning in detecting and tracking weak targets, the major drawback is the beam steering occurring at a fixed angle for all ranges. To mitigate this, FDA utilizes applying a phase progression across all the elements in the array. As a result, this enables more degrees of freedom with respect to beam scanning and reducing effects due to multi-path and other interferences. The focus of this paper is to detail the design of FDAs using Sudoku arrays in radar applications involving beamforming and beam steering along with analyzing multiple beams simultaneously forming at different directions. Simulations were performed using MATLAB, in which antenna arrays were designed with uniform spacing of half-wavelength and operated at a constant frequency. Radiation pattern and polar plot of the antenna array were analyzed with respect to sidelobes levels and beamwidth.
机译：在涉及通信和雷达系统的几种无线应用中，频率各种阵列（FDA）的概念正在成为一个受欢迎的选择。这些类型的阵列提供比梁转向和波束成形应用中的传统相控阵列更大的灵活性。即使相位阵列在梁转向和波束成形方面已经取得了成功，相对于柔性光束扫描在检测和跟踪弱目标时，主要缺点是在所有范围内以固定角度发生的光束转向。为了缓解此方法，FDA利用阵列中所有元素应用相位展开。结果，由于多路径和其他干扰，这使得相对于光束扫描和降低效果的射频使得能够更高的自由度。本文的重点是通过涉及波束成形和光束转向的雷达应用中使用Sudoku阵列进行FDA的设计以及分析在不同方向上同时形成的多个光束。使用MATLAB进行仿真，其中天线阵列设计成具有半波长的均匀间隔，并以恒定的频率操作。关于侧链水平和束宽度分析天线阵列的辐射图案和极性图。

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