论文部分内容阅读
本文介绍微波电路上的通道合并技术——正交音频调制法,及其所采用的铁氧体旋转场双模调制器和双模可变耦合器的研究。这两个器件都是由两个正交模耦合器中间夹一个用四磁极磁化的铁氧体波型差相移段组成。所不同的在于前者是加均匀四极旋转场,后者是加大小可变的固定四极场。它们都是利用微波铁氧体非互易双折射效应的新型器件。本文用微扰法求解圆波导铁氧体波型差相移段的计算公式,最后用计算机求值得奇、偶波的传播常数差为:
This paper introduces the channel merging technology in microwave circuit - orthogonal audio frequency modulation method, and the ferrite rotating field dual-mode modulator and dual-mode variable coupler. Both devices consist of two quadrature-mode couplers sandwiching a four-pole magnetized ferrite-wave differential phase shift segment. The difference is that the former is a uniform quadrupole rotating field, the latter is a variable size fixed quadrupole field. They are all novel devices utilizing the non-reciprocal birefringence effect of microwave ferrite. In this paper, the perturbation method is used to solve the calculation formula of wave differential phase shift of the circular waveguide ferrite. Finally, the difference between the propagation constants of the even wave and the differential wave is calculated as follows: