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本文提出了在多中心磁化锁式态工作的非均匀磁化系统中,铁氧体张量磁导率的概念,应用耦合波理论计算了四种对称四中心磁化情况下,微波铁氧体的波型差相移、非互易差相移和耦合系数,提出了两种实现变极化的方案。推导了变极化器中波型之间耦合的判据准则,从而提出“耦合波波型群”和“简正波波型群”的概念。探讨了变极化器的优值和最佳磁化场的分布。理论计算与实验结果相符。
In this paper, the concept of ferrite tensor permeability in a non-uniform magnetization system with multi-center magnetization lock is proposed. The wave of microwave ferrite Type differential phase shift, non-reciprocal differential phase shift and coupling coefficient, two schemes for realizing variable polarization are proposed. The criteria for the coupling between wave modes in variable-polarization devices are deduced, and the concepts of “coupled-wave mode” and “simple-normal mode” are proposed. The optimal value of the variable polarization device and the distribution of the optimum magnetization field are discussed. The theoretical calculation is consistent with the experimental results.