四线式宽频带短波基站天线及其性能分析  

Four-line Wide Band HF Base-Station Antenna and its Performane Analysis

作　　者：屠振[1] 张广求[1] 白贵芳[1] 周东方[1] 

机构地区：[1]解放军信息工程大学,郑州450002

出　　处：《电讯技术》2008年第8期22-24,共3页Telecommunication Engineering

摘　　要：提出一种新型四线宽频带短波基站天线，该天线采用模拟加粗、末端加载和行波工作相结合的方案，有效地扩展了工作频段。对天线进行了仿真分析和实际测试，该天线在2～30MHz频带范围内满足电压驻波比小于2．0，相对增益可达3～5dBi，比普通宽带短波基站天线工作频带宽、辐射效率高。而且对应于不同的工作频段，该天线可以满足远、近不同通信距离的需要。A novel four- line wide band HF（ high frequency） base -station antenna is proposed. This antenna adopts radius - thick, terminal - loaded and travelling wave - working schemes, so its operating bandwidth is extended. The antenna is simulated and practically measured. Its VSWR of the 2 -30 MHz frequency band is below 2.0, and its relative gain can arrive at 3 - 5 dBi. So its bandwidth is wider than that of the traditional wide band HF station antenna, and its radiation efficiency is also higher than that of it. To be fit for difference HF working frequencies, this antenna can work for far and near communication distance.

关 键 词：短波通信 四线天线 不平衡-平衡阻抗变换器 电压驻波比 

分 类 号：TN821[电子电信—信息与通信工程]