摘要
针对共口径双频天线阵列中,不同频率天线信号互耦干扰的问题,提出了一种增强不同频率信号之间的隔离度的方法。该方法使用滤波天线作为辐射单元,利用滤波天线的频率选择特性,抑制不同频率天线之间的信号干扰,有助于简化天线阵列的设计流程。根据此方法,建立了2×2天线阵列模型,分析阵列中邻近天线单元之间的耦合情况,对非滤波天线和滤波天线的隔离度情况进行了对比。结果表明:与非滤波天线阵列相比,滤波天线阵列不同频率单元相互独立,天线的反射特性相互之间影响更小。
To solve the problem of mutual coupling interference between different frequency bands antenna signals in shared apertures dual-band antenna array,a method to enhance the isolation between signals of different frequencies is proposed.the filtering antennas are used as radiation elements,and the signal interference between antennas of different frequency bands is suppressed by the frequency selectivity of filtering antenna,which simplifies the process of antenna array design.Based on the method,a module of 2×2 antenna array is designed for analysis the mutual coupling between adjacent elements in the array,and the isolation between the adjacent elements in the non-filtering antenna array and filtering antenna array is compared.The results shows that,compared with the non-filtering antenna array,the filtering antenna array's elements of different bands are independent of each other,and there is less influence of reflection performance on each other.
作者
赵仁荣
齐松
林嘉宏
薛佳成
张洁
ZHAO Ren-rong;QI Song;LIN Jia-hong;XUE Jia-cheng;ZHANG Jie(Shanghai Radio Equipment Research Institute,Shanghai 201109,China)
出处
《制导与引信》
2019年第4期35-39,共5页
Guidance & Fuze
关键词
双频天线阵列
滤波天线
互耦抑制
dual-band antenna array
filtering antenna
mutual coupling suppression
