A general consideration of T- and Pi-type artificial electric lines: In connection with a proposed compensated Pi-line

A theory of the general artificial electric line circuit, including the T-and π-lines as its special case, is here laid down. This theory is applied to the determination of a simple method for designing a compensated π-type artificial electric line whose electrical characteristics can be more closely Lapproximated to the actual uniform line than a common T-line or π-line, when required to work, not at a single frequency, but over a definite range of frequencies.