一种新型3G系统超宽带室内双向天线研究  

Analysis and design of a novel UWB bidirectional antenna for 3G

作　　者：冯奎胜[1,2] 李娜[3] 许家栋[1] 闫伟[1] 

机构地区：[1]西北工业大学,陕西西安710072 [2]中国东方红卫星股份有限公司,北京100094 [3]空军工程大学电讯工程学院,陕西西安710077

出　　处：《电子技术应用》2011年第6期115-118,共4页Application of Electronic Technique

摘　　要：设计了一种用于第三代移动通信系统的新型室内双向天线。通过采用渐变球激励的形式,解决了环形天线平衡馈电和阻抗匹配的问题,在节省复杂匹配网络的同时得到了很宽的工作带宽,不需附加额外的匹配网络,天线电压驻波比小于1.5时,阻抗带宽达到100%。天线工作在800 MHz^2 500 MHz,低频段增益可达5 dBi,高频段增益可达8 dBi,满足2G和3G移动室内通信在商务写字楼和宾馆酒店走廊两侧覆盖要求,与现有采用全向天线覆盖的方法相比可有效降低室内移动通信网络的建设成本,提高整个通信网络的容量和质量。This paper presents an ultra wide band（UWB） indoor bidirectional antenna for the third generation（3G） mobile com- munication system. The proposed antenna is a loop antenna diteminited by a matel ball, witch solved the balance feed and impedance match. Its voltage standing wave ratio （VSWR） is less than 1.5 within the frequency range of 800 MHz-2 500 MHz, the bandwith can achieve 100%. The gain is more than 5 dBi in low frequency and 8 dBi in high frequency. The antenna can be used to the wireless broadband communications for 2G and 3G system and can reduce the cost of construction for indoor communication.

关 键 词：超宽带 环形天线 双向天线 3G 

分 类 号：TN82[电子电信—信息与通信工程]