天线调谐器Ⅱ型阻抗匹配网络参数估算

摘要

The structure form and component scheme of H-section matching network in antenna tuner are introduced at first. The ranges of the minimum values of components are analyzed quantitatively according as the appointed threshold value of VSWR of matched network and the reasonable values can be got. The maximum values of components which determine the matching domain are computed primarily according as the input impedance of antenna. The estimation of the above two parameters can be referenced in the design of tuning algorithm and performance specifications of antenna tuner.%介绍了天线调谐器Ⅱ型匹配网络的组成结构和元件配置。对于给定的网络匹配后的电压驻波比（VSWR）门限值,定量分析了匹配网络中各元件的最小取值所必须满足的取值范围,得出了合理的估算值。对于决定网络匹配范围的各元件的最大取值,则依据天线输入阻抗的范围,给出了初步的估算值。通过对以上2类参数的估算,为后续的天线调谐器调谐算法设计及整体性能指标设计提供了参考。