论文部分内容阅读
一、前言由于回转极化式衰减器能直接而准确地读取衰减值,并具有较恒定的(与衰减值无关)相移,所以广泛地用于微波衰减测量。商品型回转极化式衰减器的典型参数是,在50分贝的准确度为±(0.1分贝+1%分贝读
I. Introduction Since the rotary polarization attenuator can directly and accurately read the attenuation value and has a relatively constant phase shift (independent of the attenuation value), it is widely used in microwave attenuation measurement. A typical parameter for a commercial rotary polarization attenuator is that the accuracy at 50 dB is ± (0.1 dB + 1% decibel read