一种多陷波超宽带微带天线设计方法  

A design method for multi-notched ultra wide band microstrip antennas

作　　者：高仁璟[1,2] 张明明 肖涵 GAO Renjing;ZHANG Mingming;XIAO Han(School of Automotive Engineering,Dalian University of Technology,Dalian 116024,China;Ningbo Institute of Dalian University of Technology,Ningbo 315000,China)

机构地区：[1]大连理工大学汽车工程学院,辽宁大连116024 [2]大连理工大学宁波研究院,浙江宁波315000

出　　处：《重庆理工大学学报（自然科学）》2023年第3期101-107,共7页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金项目(12172076)。

摘　　要：超宽带无线通信技术工作频带范围在3.1~10.6 GHz,与现有的窄带系统频带重叠,易造成信号间干扰。鉴于此,提出基于拓扑优化的方法,利用Matlab和HFSS联合仿真实现超宽带微带天线在3个特定频段的陷波设计。以30 mm×40 mm×1mm的FR4作为介质基板,通过拓扑优化和灰狼算法相结合设计天线构型。优化后构型的工作带宽为3.1~10.6 GHz,在3.1~3.76、4.52~4.76和7.12~8.27 GHz 3个频段内反射系数S_(11)>-10 dB,实现了目标频段80%的带阻特性,有效抑制全球微波接入频段(world interoperability for microwave access,WiMAX)和C波段2个频段的信号干扰。数值算例表明:利用拓扑优化方法可以实现多陷波超宽带微带天线的设计,验证了拓扑优化方法在超宽带多陷波天线设计的高效性,拓宽了拓扑优化方法在天线设计领域的应用。Ultra Wide Band(UWB)wireless communication technology works in a frequency band range of 3.1-10.6 GHz,which overlaps with the existing narrow system frequency band and easily causes inter-signal interference.In view of this,this paper proposes a method based on topological optimization to achieve notch design of UWB microstrip antennas in three specific frequency bands through the co-simulation of Matlab and HFSS.Using FR4 of 30 mm×40 mm×1mm as the dielectric substrate,the antenna configuration is designed by combining topology optimization and Gray Wolf Optimizer(GWO).The optimized configuration has a working bandwidth of 3.1-10.6 GHz,and a reflection coefficient S_(11)>-10 dB in 3.1-3.76 GHz,4.52-4.76 GHz and 7.12-8.27 GHz,which achieves 80%of the band resistance characteristics in the target band and effectively inhibits signal interference with WiMAX(World Interoperability for Microwave Access)and C band.The numerical example shows that the topology optimization method can be used to design multi-notched UWB microstrip antennas,which verifies the efficiency of the topology optimization method in the design of multi-notched UWB antennas,and expands the application of the topology optimization method in the field of antenna design.

关 键 词：超宽带 多陷波 拓扑优化 灰狼算法 

分 类 号：TN823[电子电信—信息与通信工程]