摘要
利用矩量法分析计算套筒单极子天线的电性能参数。采用与实际天线较为接近的矩量法分析模型和一种新的粗圆柱线天线快速精确计算模型 ,大大提高了分析计算的精度 ;引入 [Z]矩阵插值法 ,提高了分析计算的速度。将该方法与最优化技术相结合 ,设计出一付工作在 2 0 0～ 70 0 MHz频段、VSWR<2 .6、增益 G>5.1 d B的实用套筒单极子天线 ,理论分析与实验测试吻合良好 ,从而说明了该方法的有效性和实用性。
The Method of Moments is used to compute the current distribution, the input impedance and the radiation pattern of sleeve monopole antennas. By adopting an analysis model close to the actual sleeve monopole antenna, a new efficient and accurate modeling for moderately thick cylindrical wire antennas, the accuracy is greatly improved. By using the [Z] matrix interpolation technique, the computing time is considerably reduced. By making use of the methods above and an optimization technique, a practical sleeve antenna, with the VSWR less than 2.6 and G>5.1dB in 200～700MHz frequency band, is designed. The calculated results are in good agreement with the experimental results, which adequately proves the validity and usefulness of the new technique.
出处
《电波科学学报》
EI
CSCD
2000年第4期517-521,共5页
Chinese Journal of Radio Science
关键词
套筒单极子天线
矩量法
电性能参数
sleeve monopole antennas
method of moments
efficient and accurate modeling for moderately thick cylindrical wire antenna
[Z] matrix interpolati€
