摘要
针对短波天线小型化问题,通过分析燕尾型对数周期天线的工作原理,设计出了一种小型化短波转动对数周期天线.在小尺寸限制下,通过感性加载与L型加载集合的方式,有效地扩展了转动对数周期天线的最低工作频率.该天线可工作在3～30 MHz,而天线长度仅25 m.仿真与实际测试结果表明：该天线电压驻波比小于2.5,增益8 dBi,能够有效地进行2 000 km通信.
Based on the miniaturization of high frequency （HF） antenna, a miniaturized rotated log-periodic HF antenna is designed by analyzing the theory of the cable of coat- tails log-periodic antenna. Limited in small structure, it is combined inductance loaded and L structure loaded so that the lowest work frequency of rotated log-periodic antenna is effectively extended. The designed antenna can work in 3-30 MHz, however, its length is only 25 m. Simulation and test results show that the voltage standing wave ra- tio（VSWR） of the antenna is less than 2.5, the typical gain is 8dBi, the new designed antenna can be used in communication in 2 000 km.
出处
《电波科学学报》
EI
CSCD
北大核心
2014年第4期711-714,共4页
Chinese Journal of Radio Science
关键词
对数周期天线
小型化
短波
log-periodic antenna
miniaturization
HF
