一种二元引向天线的结构设计  

Structure Design of Two-Element Direction Antenna

作　　者：詹智婷 王静文 吴华宁[1] ZHAN Zhi-ting;WANG Jing-wen;WU Hua-ning(College of Electronic Engineering,Naval Univ.of Engineering,Wuhan Hubei 430033,China)

机构地区：[1]海军工程大学电子工程学院,湖北武汉430033

出　　处：《通信技术》2019年第2期497-503,共7页Communications Technology

摘　　要：引向天线主要由辐射器、引向器和反射器构成。根据使用场景的不同,有时需要天线具有紧凑结构,同时具有较好的辐射性能。采用螺旋天线作为引向器、半波折合振子作为辐射器,设计了单频二元引向天线。具体地,利用电磁场数值计算软件FEKO建立二元引向天线模型,依次分析了螺旋引向天线的螺旋半径、螺旋高度等结构参数对二元引向天线的反射系数、增益以及水平面方向图等参数的影响,对于引向天线的设计具有一定的理论指导意义和工程实践借鉴。The direction antenna is mainly composed of a radiator,a leader and a reflector.Depending on the usage scenario,the antenna is sometimes required to have a compact structure with good radiation performance.By using the spiral antenna as the guide and half wave folded-oscillator as the radiator,a single-frequency two-element antenna is designed.Specifically,the two-element direction antenna model is established with the electromagnetic field numerical calculation software FEKO.Then,the influence of structural parameters such as spiral radius and spiral height on the reflection coefficient,gain and horizontal pattern of the two direction antenna are analyzed.This method has certain theoretical guiding significance and engineering-practice reference for the design of direction antenna.

关 键 词：二元引向天线 螺旋结构 高增益 反射系数 

分 类 号：TN822.3[电子电信—信息与通信工程]