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首页> 外文期刊>IEEE Transactions on Antennas and Propagation >Design of phased arrays in terms of random subarrays
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Design of phased arrays in terms of random subarrays

机译：根据随机子阵列设计相控阵

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Analysis and systematic design of uniform phased arrays with subarrays of unequal sizes are absent from the literature, in spite of the appeal of such architectures to wide-bandwidth beam steering. Unequally sized subarrays are expected to outperform identical, contiguous subarrays in terms of array grating lobes, A uniform linear array that is divided into contiguous subarrays of random sizes is studied. Each array element is connected to a phase shifter, and each subarray is implemented with a common time delayer. Closed-form expressions for the average array factor and the variance of the array factor are developed. These expressions enable the formulation of a design procedure that includes the estimation of the peak-grating-lobe level in terms of the probability that the grating lobes will exceed a desired level
机译：尽管此类架构吸引了宽带光束控制，但文献中仍缺乏对具有不等大小子阵列的均匀相控阵的分析和系统设计。就阵列光栅波瓣而言，不等大小的子阵列有望胜过相同的，连续的子阵列。研究了一种均匀的线性阵列，该阵列被分为随机大小的连续子阵列。每个阵列元件都连接到移相器，并且每个子阵列都使用一个公共延时器实现。开发了平均数组因子和数组因子方差的闭式表达式。这些表达式使设计过程的制定成为可能，该过程包括根据光栅波瓣超过所需电平的概率估算峰值光栅波瓣电平。

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