重庆理工大学学报(自然科学) ›› 2023, Vol. 37 ›› Issue (3): 101-107.

• 机械·材料 • 上一篇    下一篇

一种多陷波超宽带微带天线设计方法

高仁瞡,张明明,肖 涵   

  1. 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
  • 出版日期:2023-04-26 发布日期:2023-04-26
  • 作者简介:高仁瞡,女,博士,教授,主要从事电磁超材料、天线等相关研究,Email:renjing@dlut.edu.cn。

A design method for multi-notched ultra wide bandmicrostrip antennas

  • Online:2023-04-26 Published:2023-04-26

摘要: 超宽带无线通信技术工作频带范围在 3.1~10.6GHz,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 30mm×40mm×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 3.1~10.6GHz,在 3.1~3.76、4.52~4.76和 7.12~8.27GHz3个频段内反射系数 S11>-10dB,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 (worldinteroperabilityformicrowaveaccess, 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。

关键词: 超宽带, 多陷波, 拓扑优化, 灰狼算法

Abstract: 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 S11>-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.

中图分类号: 

  • TN823