T. Kitamura et al., ANALYSIS OF CYLINDRICAL MICROSTRIP LINES UTILIZING THE FINITE-DIFFERENCE TIME-DOMAIN METHOD, IEEE transactions on microwave theory and techniques, 42(7), 1994, pp. 1279-1282
This paper presents full-wave analysis of the cylindrical striplines a
nd the cylindrical microstrip lines utilizing the finite difference ti
me-domain method in a circular-cylindrical coordinate system. Numerica
l results on the normalized characteristic impedance are in good agree
ment with the available results. Furthermore, the junctions of the coa
xial transmission line and the cylindrical microstrip line are analyze
d to show the usefulness of this method.