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推导了双频磁绝缘线振荡器(BFMILO)慢波结构的本征方程,并研究了其色散特性和场分布.通过研究发现,通过引入角向分区,使BFMILO慢波结构表现出二维周期性的特点,在该慢波结构中,不同电磁模式集中在角向不同区域,传统磁绝缘线振荡器(MILO)中呈现竞争关系的两个不同电磁模式可以同时独立稳定地参与束-波换能,从而产生双频输出.该分析方法可以适用于多频磁绝缘线振荡器的研究.
The eigenvalue equation of the slow-wave structure of BFMILO is deduced and the dispersion and field distribution of the BFMILO are deduced.The results show that the introduction of the angular partition makes the BFMILO slow-wave structure exhibit two-dimensional periodicity In this slow-wave structure, different electromagnetic modes are concentrated in different angular regions. Two different electromagnetic modes showing competing relationships in the conventional MILO can independently and stably participate in the beam-to-wave transition Can produce dual-frequency output.The analysis method can be applied to the study of multi-frequency magnetic insulated wire oscillator.