Abstract
The service environmental load will cause structural deformation of array antennas and finally seriously degrade the electromagnetic performance of the antenna. At the same time, the mutual coupling between the antenna elements will always affect the electrical performance of the antenna. Therefore, it is of great significance to evaluate the changes of the electrical properties. Considering the influence of mutual coupling and structural deformation, a calculation model of electromagnetic performance of array antennas is established. Then, taking a linear array antenna as an example, the electrical performance of the antenna is illustrated and compared with the ideal situation, which show that the presented model can solve the problem that it is difficult to quantitative evaluate the performance of the antenna effected by mutual coupling and structural deformation.
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