摘要
给出了一种应用于隧道调频广播系统中的小型化单极子天线。为了保持天线的小型化以及高增益性能，天线的辐射单元末端设计成桶状加载的形式。通过添加匹配网络，此天线实现了20％以上的相对带宽。仿真和实验结果表明，该天线工作频率为88-108MHz，能满足隧道调频广播的应用要求。
In this paper, a kind of monopole antenna with small size which is applied in tunnel FM radio system is intro- dr, ted. To obtain the small-size and large-gain characters of the antenna, the end of radiation unit is designed to be barrel. In addition with matching network, more than 20 percent of the relative bandwidth is implemented in antenna. Simulation and experimental resuhs demonstrates that this antenna＇ s working frequency is from 88 MHz to 108 MHz, which can meet the application requirements of tunnel FM radio.
出处
《电声技术》
2016年第7期74-77,共4页
Audio Engineering
关键词
单极子天线
匹配网络
宽带
桶状加载
monopole antenna
matching network
bandwidth
barrel loaded
