自适应宽带功率分配器的研究

为了展宽单支节匹配功率分配器的带宽,通过采用并联短路或开路枝节的方法,抵消原电路中由于频率偏移中心频率而带来的电纳,从而自适应的展宽带宽。将基于该方法设计的功分器与单枝节匹配功率分配器的频带宽度进行比较,结果表明,在一定的频带宽度下,该设计引入的驻波损耗远小于单枝节匹配电路,明显展宽了带宽。

Adaptive wide bandwidth power distributor and simulations

In order to broaden the bandwidth of a single-stub tuner power distributor, the method of short circuit or open circuit is employed, thus, the admittance which appears while the frequency deviates from the center value can be offset adaptively. Simulation results show that, for a certain bandwidth, the loss of the adaptive method is far less than the single-stub tuner, and the bandwidth can be significantly broadened a lot by using this method.