摘要
明确地指出了在计算2个不同频系统的天线隔离度时,天线的功率效率和方向图是随频率变化的,一些情况下是需要使用天线在失配区特性的;详细地阐述了一种估算单频段垂直极化偶极子阵列结构的基站天线方向图参数随频率变化的方法;通过计算电磁学仿真对该方法进行了验证;实际测量实验也表明隔离度和天线频率特性是密切相关的。
In the calculation of antenna isolation of two systems on different frequency band, it should be considered that the power efficiency and antenna beam pattern will change with frequency, some cases researcher needs to use the antenna characteristics in mismatch band. Meanwhile, it proposes a method to estimates the frequency dependent beam pattern of antenna, which with the structure of half wave dipoles array. Simulation of computational electromagnetic validates the method. Measurement also shows that antenna isolation if frequency dependent.
出处
《邮电设计技术》
2012年第6期51-54,共4页
Designing Techniques of Posts and Telecommunications
关键词
天线
隔离度
频率特性
方向图
Antenna
Isolation
Frequency characteristic
Beam pattern
