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According to the coupled-wave equations, the irregular properties at boundaries of the wave-guide with helical corrugation is analyzed using the method of impedonce perturbation. The general coupled equation of the helical wave-guide and the formuale for coupled coefficient are obtained. Based on rules of mode coupling in helical wave-guide, the dispersion equation is obtained and the dispersion characteristics are discussed.
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Keywords:
- wave-guide with helical corrugation /
- coupled equations /
- impedonce perturbation /
- dispersion characteristics /
- eigenmode
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