新型高导热螺旋线慢波结构的设计和仿真分析
doi: 10.3724/SP.J.1146.2007.01761
Design and Simulation Analysis of Novel Helical Slow-wave Structure with High Heat Transfer
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摘要: 该文从理论上通过对螺旋线慢波结构的热状态进行分析，首次提出以椭圆管壳结构来代替传统的圆管壳结构，然后利用ANSYS软件对椭圆管壳螺旋线慢波结构作了三维热分析并利用微波工作室CST分析了其高频特性。仿真结果表明，椭圆管壳螺旋线慢波结构的导热能力明显强于传统的圆壳结构，且夹持杆数目越多，导热能力越强。同时还发现椭圆管壳慢波结构在保证足够大耦合阻抗前提下，其工作带宽相对圆壳更宽。
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关键词:
- 行波管;螺旋线慢波结构;椭圆管壳;热分析
Abstract: The thermal statement of the helical slow wave structure is analyzed in detail in this paper, and an elliptical shell is firstly brought up to replace the conventional circle shell in the slow-wave structure. Then the 3D thermal analysis of the helical slow structure with elliptical shell is done with the help of ANSYS and the high-frequency characteristics simulation is also done with WMS CST. It is demonstrated that the ability of heat transfer of the helical slow structure with elliptical shell is much better than the conventional one and the more the support rods are, the better the heat transfer is. It is also found that the bandwidth of the elliptical shell is more wider than the circle one while the coupling impedance just decrease a little. -
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