矩形波导H面铁氧体相移器是波导差相移式环行器的重要组成部件,也可用于雷达高功率变极化系统中。以往,此种相移器的非互易差相移,一般用微扰法进行估算,但误差较大。例如,在5厘米和15厘米波段,差相移的计算值和实测值分别差24％和43％。本文采用电场矢量(?)的变分公式进行计算,试探函数只取一项,上述两个波段的计算结果与实测值只差6％和10％。 Rectangular waveguide H surface ferrite phase shifter waveguide differential phase shift circulator is an important component, but also can be used for radar high power variable polarization system. In the past, the non-reciprocal phase shift of such a phase shifter is generally estimated by the perturbation method, but the error is larger. For example, in the 5 and 15 cm bands, the difference between the calculated and measured values ​​of the difference is 24% and 43%, respectively. In this paper, the variational formula of the electric field vector (?) Is used to calculate, only one trial function is taken, and the calculation results of these two bands are only 6% and 10% lower than the measured values.