COAXIAL LINE CONSISTING OF SQUARE CONCENTRIC WITH CIRCLE

This paper studies the coaxial system consisting of a square concentric with a circle. Some of the methods are extended to an N-regular polygon concentric with a circle. In the light of Lin’s method, a strict impedance formula has been derived by means of mid-equipotential line. Lin’s point-match impedance has been modified and the upper and lower bounds of impedance have been improved with a special technique.