基于HFSS的双频微带天线的研究

近年来，随着个人通讯和移动通讯技术的迅速发展，在天线的设计上提出了小型化和多频带的要求。而微带天线具有结构紧凑、外观优美、体积小重量轻等优点，得到广泛的应用。但是，低增益、单一带宽的缺点也限制了微带天线的应用。本此设计对微带天线最基本的小型化技术和双频带技术进行了研究和分析。在设计过程中，采用ANSOFT公司的电磁仿真软件——Ansoft HFSS，利用短路探针和插入馈电点的方法，设计出一款简单的双频微带天线。

关键词：微带天线;双频带;小型化;HFSS

Abstract

In recent years， the demand form miniaturization and multiband has been presented with rapid development of mobile communications. Therefore， the size of the antenna is required to be as small as possible.Microstrip antennas have several advantages over conventional monopole-like antenna for mobile handsets. They are less prone to damage， compact in total size and aesthetic from the appearance point of view. Unfortunately， some shortcomings of Microstrip antennas such as low gain，multiwidth， etc， make them unfit for practical application. Therefore this paper， the basic microstrip antenna miniaturization technologies， broadband technologies are discussed， analyzed and summarized.During the design process， The use of electromagnetic simulation software of ANSOFT company—Ansoft HFSS，Made a number of simple microstrip antenna structure combination of multiband design method.

Keywords: Microstripantenna ， Smaller ；multiband；HFSS