On the Theory of the Combined Tπ Type Artificial Electric Lines

Abstract

The T-section and π section of an artificial line may be combined in series in order to make the frequency characteristics of the artificial line more close to that of the uniform line to be represented. This combined Tπ type artificial electric line which has beeu proposed by the present authors(Journal of the Institute of Electrical Engineers of Japan, June, 1922) is a composite line in which the T sections and π sections have different values of surge impedance. In the present paper the combined Tπ line is theoretically treated as a homogeneous line by suitably combining the neighbouring T and π section together as shown in Fig. 2.(Nov. 1922)