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2020-11-20
Array Pattern Recovery Under Amplitude Excitation Errors Using Clustered Elements
By
Progress In Electromagnetics Research M, Vol. 98, 183-192, 2020
Abstract
In practice, the amplitude and phase excitations of array elements undergo random errors that lead to unexpected variations in the array radiation patterns. In this paper, the technique of the clustered array elements with discretized amplitude excitations is used to minimize the effect of random amplitude excitation errors and restore the desired array patterns. The most important feature of the proposed technique is its implementation in the design stage which may instantly count for any errors in the amplitude excitations. The cost function of the used optimizer is constrained to prevent any undesirable increase in the sidelobe levels due to unexpected excitation errors. Moreover, the error occurrences on the element amplitude excitations are considered to be either randomly over the whole array aperture or regionally (i.e., error affecting only a part of the array elements that located in a particular quadrant of the array aperture). Simulation results fully verify the effectiveness of the proposed technique.
Citation
Jafar Ramadhan Mohammed Ahmed Jameel Abdulqader Raad H. Thaher , "Array Pattern Recovery Under Amplitude Excitation Errors Using Clustered Elements," Progress In Electromagnetics Research M, Vol. 98, 183-192, 2020.
doi:10.2528/PIERM20101906
http://www.jpier.org/PIERM/pier.php?paper=20101906
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