摘要
特征模方法目前已经成为天线设计方法的研究热点,计算电磁学的发展使任意形状的微带天线的本征模式求解成为可能。本文提出采用具有辐射边界条件的特征模方法求解天线的输入阻抗,并采用基于微分方程的特征模理论用于折线槽圆形宽频可穿戴天线的设计。通过分析天线不同模式的辐射特性,借助于不同模式归一化电场的分布来选择最佳的馈电位置以激发出需要的模式,进而获得宽频带特性。实验表明,本文所提出的折线槽圆形宽频可穿戴天线表现出良好的性能,完全覆盖(5.725GHz-5.85GHz)频段,并且具有较好的抗弯曲性,适合可穿戴智能设备的应用。
Theory of Characteristic Mode(TCM)has become a research hotspot in antenna design.The development of computational electromagnetics makes it possible to solve the eigenmode of microstrip antenna with arbitrary shape.In this paper,Theory of Characteristic Mode with radiation boundary conditions is proposed to solve the input impedance of the antenna,and Theory of Characteristic Mode based on differential equations is applied to the design of the circular wide-band wearable antenna with folding slot.By analyzing the radiation characteristics of different modes of the antenna,the optimal feeding place is selected to excite the desired mode by the normalized electric field distribution of different modes,and then the wide-band characteristics are obtained.Experiments show that the circular wide-band wearable antenna with folding slot presented in this paper has good performance,which has an bandwidth wide enough to covers(5.725GHz-5.85GHz)frequency band and flexural resistance for wearable intelligent equipment applications.
作者
刘啸岚
逯贵祯
LIU Xiao-lan;LU Gui-zhen(Hengshui University,Hengshui 053000,China;Communication University of China,Beijing 100024,China)
出处
《中国传媒大学学报（自然科学版）》
2019年第5期33-37,共5页
Journal of Communication University of China：Science and Technology
