The transition from the rectangular waveguide to the cavity coupler in LINACis made by means of a matching iris, which leads to amplitude and phase asym-metries of fields in the cavity coupler.
电子直线加速器的腔式耦合器通过侧面匹配膜片和方波导相连，它引起了腔中场振幅和相位的不对称。
2
To overcome the long test time and big error in single variable open loop step test method, a novel identification method based on asymptotic theory (asym) is presented.