Abstract

Modification of the beam tracing method for numerical simulations is proposed that allows one to use it in the zones of the microwave beam bifurcation, which is accompanied by the linear mode transformation. The theoretical basis for this modification is the switching over to the hybrid spatial-spectral representation of two beams, within which both the beam axes coincide and, therefore, the paraxial approximation is still valid. The initial parameters of the beam split off from the “parent” beam are determined, and the equations are derived connecting the beam amplitudes in the bifurcation zone with each other.

中文翻译：

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不均匀等离子体中的微波分叉：通过射线方法建模

摘要

提出了对束跟踪方法进行数值模拟的修改，该方法允许人们在微波束分叉的区域中使用它，并伴以线性模式变换。这种修改的理论基础是切换到两个光束的混合空间光谱表示，两个光束轴在该混合空间光谱表示中重合，因此近轴近似仍然有效。确定从“母”光束中分离出来的光束的初始参数，并推导方程，将分叉区中的光束幅度相互联系起来。