Scattering Pattern Calculation for Large Finite Arrays using the Element-Varying Active Element Factor Method
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Scattering Pattern Calculation for Large Finite Arrays using the Element-Varying Active Element Factor MethodAbstract
In this paper, an efficient approach for calculating the far field pattern of one-dimensional (1-D) and two-dimensional (2-D) finite patch arrays is proposed. Based on the active element factor (AEF) defined specifically for scattering problems, this proposed method takes into account the effects of mutual couplings and array edges. From the induced current distribution on an array with odd or even elements, the array is divided into different parts and neglects the weak mutual coupling affected by far elements for each part. Thus, the element-varying AEF method changes a large array problem into a superposition of various simplified subarray problems. Three examples verify the accuracy and efficiency of the proposed method. Furthermore, the results show that the proposed method with the element-varying AEF technique has the ability to solve the scattering problems of rather large arrays whereas other methods become incapable due to computer hardware limitations.
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