Some Novel Expressions for the Propagation Constant of a Uniform Line

N a modern communication system the leakance is generally quite small and can be neglected in making propagation computations. Hence the case is taken of a circuit having resistance, inductance and capacitance. Let R, L and C be the resistance, inductance and capacitance per mile of the circuit. Now the formulae which have been developed for the real and imaginary parts of P, the propagation constant, are: P = a + jfi where a = V ^ d V R * + co2Z,2 0 = + «Z,"} (!) (2)