广义铁氧体变极化理论

Generalized Theory of Ferrite Variable Polarization

本文根据极化雷达对极化状态在 Poincare极化球面上分布的要求 ,提出了复合型和混合型两种铁氧体双模器件的变极化机制。利用双模器件的耦合波理论 ,分析了在横向四磁极和纵向磁化场的共同作用下 ,产生复杂的旋磁效应 ,即复合变极化效应和组合变极化效应 ,满足了极化雷达的要求。

According to the requirements of polarimetric radar for polarization states that the polarity vectors must distribute all over the Poincare polarization sphere, two types of variable polarity mechanism, compound-type and combined-type fer rite dual mode devices (FDMD),are presented in this paper. The FDMD under both t he actions of transverse quadrapole and longitudinal magnetized field is analyze d by coupled-wave theory. The complex gyromagnetic variable polarization effect can be deduced by FDMD and will satisfy the requirements of polarimetric radar.