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Analysis of cutoff characteristic for TE wave and TM wave is very important to design the geometry of structure (the angle of the cones) for TEM cell. In the paper, take the co-conical line for example. The half angle of inner conical conductor is 10° and that of outer conical conductor is 1.893°. An iteration method programmed in Matlab is used to solve the roots of the transcendental functions....
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