超宽带天线设计与研究

超宽带天线的研究与设计

中文摘要

近几年来，超宽带天线的研究已经成为热潮。本文的思想也是研究小型化超宽带平板天线，让其在生活中的硬件设计产品中满足超宽带天线的技术需要。因为超宽带天线在WiMAX和WLAN的窄带系统和装载切口天线设计结构上产生的影响。实现WiMAX和WLAN频带的双凹槽在超宽带天线结构设计。在设计过程中主要是使用HFSS软件进行天线结构的仿真优化。主要利用了HFSS软件仿真和天线结构的优化设计过程。我们针对其超宽带天线的性能参数，相应的提升平面单极子天线的基础研究。传统平面单极子天线与狭槽，狭槽装载方法的横截面，提出了几种平面单极子天线从频域和时域研究，从而从单极子天线的相关性能参数出发，研究平面单极子天线在频率范围为3.1GHZ-11GHZ，使超宽带天线能够达到市场对硬件方面的应用需求。

关键词：平面单极子天线；超宽带；HFSS仿真

I

Research and design of ultra-wideband antenna

Abstract

In recent years, the research of ultra-wideband antenna has become a boom. Thought of this paper is to study ultra-wideband planar antenna miniaturization, let the life in the hardware design of the product satisfy the need of ultra-wideband antenna. Because of ultra-wideband antenna in WLAN and WiMAX narrowband systems and the impact loading of incision on the antenna design. Both WiMAX and WLAN band grooves in the ultra-wideband antenna structure design. In the design process is mainly using HFSS software for simulation of antenna structure optimization. Mainly using HFSS software simulation and optimization of the antenna structure design process. We according to the performance of ultra-wideband antenna parameters, the corresponding increase of planar monopole antenna of basic research. Traditional planar monopole antenna and the slot, slot loading method of cross section, and puts forward several planar monopole antenna from frequency domain and time domain research, thus starting from the related performance parameters of monopole antenna, the planar monopole antenna in the frequency range of 3.1 GHZ - 11 GHZ, the ultra-wideband antenna can meet the market demand for hardware applications.

Key words: Planar monopole antenna; Ultra-Wideband; HFSS simulation

目录

I

中文摘要....................................................................................................................... I Abstract ......................................................................................................................... I 第1章绪论........................................................................................................... - 3 -1.1 研究背景...................................................................................................... - 3 -1.2 超宽带天线的研究现状.............................................................................. - 4 -1.3 研究趋势...................................................................................................... - 6 -第2章超宽带天线的理论基础........................................................................... - 7 -2.1 超宽带天线的基本理论.............................................................................. - 7 -

2.1.1 超宽带天线的结构原理....................................................................... - 7 -

2.1.2 超宽带信号的时域辐射....................................................................... - 7 -2.2 超宽带天线的性能参数.............................................................................. - 9 -第3章超宽带天线结构设计与仿真.................................................................. - 11 -

3.1 超宽带天线结构与尺寸参数..................................................................... - 11 -3.2 超宽带天线性能仿真................................................................................ - 14 -第4章超宽带天线测试与分析......................................................................... - 17 -

4.1 S11参数及带宽.......................................................................................... - 17 -4.2 驻波比VSWR ........................................................................................... - 18 -4.3 增益方向图................................................................................................ - 20 -4.4 弯曲特性.................................................................................................... - 22 -第5章总结与展望............................................................................................. - 27 -

5.1 总结............................................................................................................ - 27 -5.2 下一步工作计划与展望............................................................................ - 27 -参考文献............................................................................................................... - 29 -

II