Study on High Power Circular Waveguide TE0n—TE11 Mode Conversion
Gyrotrons are sources of high-power millimeter waves. Current interest in gyrotrons is mainly because they can act as a source of microwave power for electron-cyclotron-resonance heating (ECRH) for fusion experiments. However, the field pattern of these gyrotron modes is unsuitable for long path waveguide transmission or plasma heating. Here, it is desired to have a linearly polarized wave requiring the use of a mode conversion system which consists of many nonuniform waveguide components. Based on the theory of mode coupling, this paper discusses the circular waveguide mode conversion with waveguide axis curved and radius tapered in detail. It also carries out the optimized analysis about the geometry structure of TE0n-TE11 mode converter. Adopting different phase rematch techniques, the optimal geometry parameter can be obtained. The mode converter designed in this way owns high conversion efficiency exceeding 98％.
circular waveguide mode converter coupling equation phase rematch TE0n —TE11
Hu Wei Song Yuecong
Department of Computer Science & Engineering,Mianyang Normal University,Mianyang 621000 China
国际会议
西安
英文
2007-08-16（万方平台首次上网日期，不代表论文的发表时间）