broadband character meaning in English

宽频带特性

The method of moments is used to analyze and calculate the broadband characters of impedance , voltage satanding wave ratio ( vswr ) , gain and radiation pattern of larger angle lpda , and the relation between these characters and the parameter of antenna construction is discussed in this paper . based on analysis and calculation , the antenna is designed and tested , and the measured results are in good agreement with the theoretical calculation
本文采用矩量法分析和计算了对数周期天线在张角较大时，它的阻抗、电压驻波比、增益及方向图的宽带特性，讨论了这些特性与天线结构参数之间的关系.根据分析和计算，设计并制作天线进行实验测试，理论计算和测试结果表明，两者吻合较好