Solution of distributed capacitance of eccentric coaxial line by PMOBG method

Abstract

Mode analysis of TEM mode in a quasi-coaxial line is done by the perturbation method of boundary geometry (PMOBG), and its potential formula is presented. Moreover, the perturbation expression of the distributed capacitance of an eccentric coaxial line is obtained by the perturbation integral method, and its accuracy and applicability are discussed.