摘要
常用短波天线的尺寸一般较大,不适于在建筑物、运动载体等有限架设空间中使用.基于模型仿真计算短波垂直单极天线,理论分析其传输增益函数(Transducer Power Gain,TPG)对接收效率的影响.通过实测天线输入阻抗采用实频法设计天线匹配网络、有源放大电路.设计了一种小型的鞭状天线,其尺寸不大于波长的十分之一,通过加载匹配网络及有源放大后,实现小体积、超宽频带、高效率、高灵敏度、等特点,可灵活应用在各种移动载体的短波宽带有源鞭状接收天线.
The commonly used shortwave antenna size is to big to be used in buildings,motion vectors or other limited space.Based on simulation calculation of short vertical monopole antenna model,the transmission transducer power gain(TPG)impact on receiving efficiency is analyzed.The antenna matching network and active amplifier circuit are designed by measuring the antenna input impedance and by using real frequency method.A small whip antenna with a size no greater than one-tenth of the wavelength is designed.By loading the active matching network and after amplified,it can achieve small,ultra-wideband,high efficiency,high sensitivity,etc.,and can be flexibly applied in shortwave reception broadband active whip antenna in all types of motion vectors.
出处
《电波科学学报》
EI
CSCD
北大核心
2014年第3期576-580,共5页
Chinese Journal of Radio Science
关键词
实频法
有效高度
匹配网络
放大电路
real frequency method
effective height
matching network
amplifier circuit
