同轴高功率超宽带功分器研究

Research on high power divider with ultra-wide-band

运用同轴结构,研制出高功率超宽带功分器,采取先阻抗变换,再功分的形式,以简化机械加工难度。运用高频仿真软件进行仿真分析,研制出一分为二和一分为四的功分器,再组合成为一分为八的功分器,高压实验表明该功分器能耐高压,驻波测试表明阻抗匹配较好,从测量的传输参数可以看出输出各端口幅度一致性较好。证明了该高功率超宽带功分器可以用作实际的高功率天线阵列。

High power divider with ultra-wide-band was designed based on coaxial structure. The divider input impedance was first translated to the desired impedance for matching and then the offset was made to ease the mechanical processing. High frequency simulation software was used to simulate the divider and the practical divider was fabricated. High voltage experiment shows that the divider can resist high power up to millions watt. The measurement of voltage standing wave ratio（VSWR） is less than 1.5 from 0.18 GHz to 0.85 GHz and the average value is about 1.2. The transmission parameters indicate the output ports have well amplitude consistency. The measurements show that the divider is applicable to high power antenna array.