有限偶极子天线阵的特性研究

天线阵列的特性决定其应用范围，了解天线特性可以有效地利用其优点传输能量．针对偶极子天线阵，分析了阵元互耦影响和频率特性及其散射特性．主要包括在应用实践和开路电压相结合的方法计算阵列单元互耦的影响的情况下，应用矩量法分析了终端负载，散射场和反射系数随着频率变化的特性曲线，最后给出了阵列大小和入射角度的变化对散射方向图的影响．结果表明，对于半波长的偶极子阵列，当阵元问距为半波长时性能达到最佳．

Research on characteristics of finite dipole arrays

Characteristics of an antenna determine its application, so understanding its characteristics is necessary before it can be used to transmit energy effectively.A precise analysis of the characteristics and scattering pattern of a finite dipole array is presented in this paper.These characteristics are studied through physical analysis as well as detailed computer simulations.The research featured compensation for the mutual coupling effect between the array elements,frequency characteristics,and the scattering pattern of the array.Compensation for the mutual coupling effect considerably eliminates it from consideration.Furthermore,terminal loads,scattered power,and reflection coefficient as a function of frequency are discussed in detail.Finally,the effects of varied array sizes and incident angles on scattering patterns are analyzed.The results indicate that a half-wave dipole array has good performance when array element space is also half-wave.