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Modeling the RF Performance of a Small Array

机译:小型阵列的射频性能建模

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Large phased arrays can be reasonably accurately modelled in finite element programs, such as HFSS using an infinite array model of the embedded element. This approximation is not applicable to small arrays, where each element is in a different electromagnetic environment. Very small arrays of simple elements (of about 10 elements or less) can be modelled as a complete unit, but slightly larger or more complex arrays require additional techniques to be modelled accurately. The predicted performance of several versions of a small array has been compared using HFSS V9.5. The arrays contained either waveguide or printed dipole elements and, within the limits of available computing resources, solutions were generated for (1) complete array models, (2) half and quarter array models with symmetry planes, and (3) infinite array models.
机译:大型相控阵列可以在有限元素程序(例如HFSS)中使用嵌入式元素的无限阵列模型合理地准确建模。此近似不适用于每个元素处于不同电磁环境中的小型阵列。可以将非常小的简单元素数组(大约10个或更少的元素)建模为一个完整的单元,但是稍微更大或更复杂的数组则需要使用其他技术来精确建模。已使用HFSS V9.5比较了小型阵列几个版本的预测性能。阵列包含波导元件或印刷偶极子元件,并且在可用计算资源的限制内,针对(1)完整阵列模型,(2)具有对称平面的半和四分之一阵列模型以及(3)无限阵列模型生成了解决方案。

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