新型快速波导缝隙天线设计方法  

Novel Fast Method for Designing Slotted Waveguide Antennas

作　　者：曹顺锋 焦永昌[1] 

机构地区：[1]西安电子科技大学天线与微波技术国防科技重点实验室,西安710071

出　　处：《微波学报》2016年第3期24-27,共4页Journal of Microwaves

摘　　要：对馈电网络和天线的散射矩阵进行级联,推导了互耦条件下阵列天线输入端口散射参数和天线实际激励分布的计算方法。基于该方法,提出了一种新型快速波导缝隙天线设计方法,并设计了一副12元宽边纵缝一维波导缝隙天线。测试结果表明,在9.82~10.21 GHz内反射系数和副瓣电平分别优于-15 d B和-28 d B。测试结果与计算、仿真结果吻合良好,验证了该方法的准确性和有效性。By connecting the scattering matrices of feeding networks and antennas together,methods on calculating the scattering parameter at the input port of antenna array and the actual excitation distribution of antennas are presented with considering the coupling effect. Based on the method,a novel fast method for designing slotted waveguide antennas is proposed in this paper,and a 12-element linear array with longitudinal slots in the broad wall is designed. The measured results show that the reflection coefficients and the side-lobe levels are better than-15 d B and- 28 d B from 9. 82 GHz to 10. 21 GHz,respectively. The measured results accord with the computed and simulated results well,which demonstrates the accuracy and efficiency of the proposed method in this paper.

关 键 词：波导缝隙天线 微波网络 广义散射矩阵 互耦效应 

分 类 号：TN823.24[电子电信—信息与通信工程]