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首页> 外文期刊>Applied Computational Electromagnetics Society journal >Linear Pattern Correction Technique for Compensating the Effects of Mutual Coupling and Deformation in Wedge-Shaped Conformal Antenna Arrays
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Linear Pattern Correction Technique for Compensating the Effects of Mutual Coupling and Deformation in Wedge-Shaped Conformal Antenna Arrays

机译：用于补偿楔形保形天线阵列相互耦合和变形效果的线性图案校正技术

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摘要

In this paper, the effects of mutual coupling and antenna surface deformity in a conformal wedgeshaped antenna array are compensated using a linear pattern correction technique. The problem is formulated to reduce the absolute distance between the actual (simulated) and the desired radiation patterns and to allow for null positioning control. The individual field patterns for the antenna elements are deformed due to changes in mutual coupling and the conformal surface. The deformed patterns of the individual antennas for specific bend angles are stored as lookup tables and interpolated to get the desired radiation pattern at any arbitrary bend-angle. The problem is linearly and quadratically constrained at the null points and performance compared with unconstrained optimization. The proposed solution for diminishing the effect of mutual coupling and surface deformity is independent of main lobe direction, type of individual antenna, array geometry, and spacing between antenna elements. The closed-form results are validated through Computer Simulation Technology (CST) for the wedge-shaped deformed dipole antenna array. The results for the proposed scheme are also assessed with the traditional Open Circuit Voltage Method (OCVM) and show superior compensation for deformity and the mutual coupling effects in conformal beam-forming arrays in terms of main beam direction, position and depth of nulls.
机译：在本文中，使用线性图案校正技术补偿了共形状过结合的天线阵列中的互联耦合和天线表面畸形的影响。该问题被配制成降低实际（模拟）和所需辐射图案之间的绝对距离，并允许空定位控制。由于相互耦合和共形表面的变化，天线元件的各个场图案变形。针对特定弯曲角度的各个天线的变形图案被存储为查找表并插入以使所需的辐射图案以任意弯曲角度获得。与无约束优化相比，该问题在空点和性能下线性地和二次限制。用于减小互联耦合和表面畸形的效果的所提出的解决方案与主瓣方向，各个天线，阵列几何形状和天线元件之间的间隔的效果无关。通过计算机仿真技术（CST）验证闭合形式的结果，用于楔形变形偶极天线阵列。还使用传统的开路电压法（OCVM）评估所提出的方案的结果，并在主光束方向，空位和羽绒的位置，显示了对畸形的畸形和相互耦合效果的卓越补偿。

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