铁氧体双模器件的广义理论

Generalized Theory of Dual-mode Ferrite Devices

铁氧体双模器件包括双模移相器,圆极化移相器,旋转场移相器,双模变极化器等等。其种类繁多,每种器件由若干基本双模段级联而成。每个基本单元上,外加磁场形式各不相同,有四磁极磁化场,纵向磁化场,双磁极磁化场及其混合磁化场。本文拟用统一的理论对其进行处理及分析并引入具体实例使用CAD技术进行计算,从而进一步确认理论的正确性。

Dual-mode ferrite devices include such as dule-mode phase shifter, circular polarization phase shifter, rotary-field phase shifter, dual-mode polarizer variable and so on. It is comprised of a number of dual-mode ferrite waveguides cascaded, which is formed by all types of combination. According to different methods of magnetization, there are quadrapole magnet field, dipole field, longitudinal magnet field, and their compound field in each basic fertile section. A generalized and unitized theory for dual-mode ferrite devices is developed in this paper that has been dealed with perturbation field theory. Furthermore, the polarization matrix and perturbation field theory has been combined each other and through some of examples, the result calculated for the various of dule-mode ferrite devices has confirmed the exactitude of theory.