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本文采用场匹配法导出角向多导体波导的截止波数和高频场分布的解析表达式，通过数值计算研究了场分布特性。
In this paper, the analytical expressions of the cut-off wave number and the high-frequency field distribution of angular multi-conductor waveguides are derived by using the field matching method. The field distribution characteristics are studied by numerical calculation.