一种新型的高增益SIW漏波天线的设计与仿真  

Design and Simulation of a Novel High-Gain SIW Leaky-Wave Antenna

作　　者：章盈 ZHANG Ying(Faculty of Electrical Engineering and Computer Science,Ningbo University,Ningbo 315211,China)

机构地区：[1]宁波大学信息科学与工程学院,宁波315211

出　　处：《无线通信技术》2025年第1期31-35,共5页Wireless Communication Technology

摘　　要：本文提出了一种具有宽角度波束扫描的基于基片集成波导的周期性漏波天线,以减轻开阻带(OSB)的影响。该天线的单元由一对中心对称的缝隙阵列结构组成,采用色散曲线进行色散特性分析。利用全波分析法分析天线的阻抗带宽和辐射特性,仿真结果表明天线在8.6GHz~14.5GHz工作频带内,天线的回波损耗低于-10dB,主波束具备从-46°到+58°的从后象限到前象限的连续波束扫描能力,边射波束方向的增益为13.8dBi,没有明显的下降,成功抑制了开阻带现象。工作频段下天线的增益变化较小,平均增益为13.7dBi,平均辐射效率为65%。This article proposes a periodic leaky-wave antenna based on substrate integrated waveguide with wide beam scanning to alleviate the effects of stopband(OSB).The antenna unit consists of a pair of centrally symmetric slot array structures,and dispersion characteristics are analyzed using dispersion curves.The impedance bandwidth and radiation characteristics of the antenna are analyzed using full-wave analysis method.Simulation results show that within the operating frequency band of 8.6GHz~14.5 GHz,the return loss of the antenna is lower than-10 dB,and the main beam has continuous beam scanning capability from-46°to+58°from the rear quadrant to the front quadrant.The gain of the sidelobe direction is 13.8 dBi without significant decrease,successfully suppressing the occurrence of stopband phenomenon.The gain variation of the antenna within the operating frequency band is small,with an average gain of 13.7 dBi and an average radiation efficiency of 65%.

关 键 词：基片集成波导 周期性漏波天线 连续波束扫描 

分 类 号：TN822.6[电子电信—信息与通信工程]