本文用耦合波理论处理了对称四磁极磁化情况下，微波铁氧体的非互易双折射效应和变极化效应。
Both nonreciprocal birefringent effect and variable polarization effect of microwave ferrite in the symmetrical four-pole magnetized field are discussed in the light of coupling-wave theory.
本文应用绕射理论并借助于互易定理，导出了一个在有限尺寸金属平板上割出的一条裂缝的近似辐射埸公式。
On applying the diffraction theory and with the aid of the reciprocity theorem, an approximate formula for the radiation field of a slot cut in a metal sheet of finite size is derived.
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