On the characteristic impedance of a coaxial line with elliptic cone outer conductor and angular strip inner conductor
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The expressions of the characteristic impedance of a new kinds of transmission lines—elliptic cone coaxial line are derived. The formulas are based on the TEM and the transformation of the sphero-conal coordinate into two dimension plane. Also themethods using the graphical approximation and taking the geometrical average of the upper and lower bounds to the size of the line are put forward to calculate the characteristic impedance — of the elliptic cone coaxial line.
Key WordsThe elliptic cone Sphero-conal coordinate The elliptic cone coaxial line Characteristic impedance
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