倾斜偏心对同轴波导TEM模式性能的影响
Effects of oblique misalignment in a coaxial waveguide TEM modes performance
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摘要: 采用CST微波工作室软件，数值模拟了内外导体轴线偏心对同轴波导TEM模式性能的影响。结果表明：随着倾斜偏心度的逐渐增大，倾斜偏心同轴波导的S21参数和电场的幅值减小，但减小的幅度不是很明显,不会影响同轴波导的正常工作。但是，当偏心度增大到1°时，同轴波导TEM模式的端口电场分布云图与无偏心相比发生了很大的变化，可能导致同轴波导不能正常工作。Abstract: The effects of the misalignment between the inner-rod axis and the outer-wall axis in an open coaxial resonator are studied by the software CST microwave studio. Results show that the field amplitude and S parameter decrease with the oblique misalignment angle increase. But the effect is little, and the coaxial waveguide can work normally. While the oblique misalignment angle is 1°, the field profile of TEM mode at the coaxial waveguide’s port is much different from the profile with very small oblique misalignment angle, the device might not work normally.
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Key words:
- high power microwave /
- oblique misalignment /
- coaxial waveguide /
- s parameter /
- field amplitude
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