一种新型易调整的曲折线双频天线 - 易迪拓培训.PDFVIP

一种新型易调整的曲折线双频天线 宁舒曼 张福顺 程 喆 薛 欣 冯昕罡 (西安电子科技大学天线与微波技术国家重点实验室，陕西 西安，710071) 摘 要：本文介绍了一种新型易调整的印制曲折线双频天线的设计方法。天线的分析和仿真使用 Ansoft HFSS 电磁仿真软件。该天线通过在天线地板平面开两条空气缝隙实现双频功能，并应用于无线局域网络的 2.4— 2.48GHz 以及 5.725—5.825GHz 频段。在第一谐振频率和第二谐振频率处，天线的电压驻波比小于 2 的工作 带宽分别为 6.3%和 5.6%。研制了天线样机，并对天线样机进行了测量。测量结果表明该天线具有很好的双 频特性，与仿真设计能很好的吻合。 关键词：天线，双频，曲折线 A Novel Easy Regulated Dual Band Meander Line Antenna Ning Shu man Zhang Fu shun Cheng Zhe Xue Xin Feng Xin gang (National Laboratory of Antenna and Microwave Technology, Xidian University, Xi’an Shanxi, 710071,China) Abstract: In this paper, a method for designing a novel easy regulated dual band printed meander line antenna is described. In antenna design, we analyze and simulate the antenna by using Ansoft HFSS program. The dual-band operation is obtained by adding two air gaps on the ground plane of the presented antenna, and can be used for wireless local-area network (WLAN) application in the 2.4-2.48GHz and 5.725-5.825GHz frequency range. The impedance bandwidth for VSWR less than 2 is 6.3% and 5.6% for the first- and the second-resonance, respectively. A prototype has been fabricated and tested. The measured results show that the meander line antenna proposed in this paper has good dual-band characteristic, and the measured results show good agreements to the simulated results. Keywords: Antenna; Dual-band; Meander line 1 引言 型的易于调整的印制曲折线天线。通过在天线地板 平面开两条空气缝隙，使天线的谐振频率易于调整， 并谐振在 2.4—2.48GHz 和 5.725—5.825GHz 的频带 基于无线电通信的局域网络，较之于现存的电 内。为了改善天线在2.4—2.48GHz 处的阻抗匹配， 缆系统，日益具有适应性，发展成为在动态环境中 应用了形状经过改进的馈线[3] 。文中给出了天线设计 一种相对低成本的选择。大多数无线局域网络系统 的步