. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. DISTORTION CORRECTION 499 With the above fixed values of the coefficients and formulae (77), (78), (80), and (82), the network can be constructed which is to simulate any smooth line having physically realizable Za and z^. This simula-. (Broken lines indicate the other series and lattice branches, respectively identical.) Ri = miR'l, Lz = miL'l, i?6 = l/m2G'l, Ci = niiC'l, OTi = .45737, Ri = \lm,G'l, d = miC'l, Ri = miR'l Ls = niiL'l, W2 = .14456, i?i' = m.'R'l, Lz = m
. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. DISTORTION CORRECTION 499 With the above fixed values of the coefficients and formulae (77), (78), (80), and (82), the network can be constructed which is to simulate any smooth line having physically realizable Za and z^. This simula-. (Broken lines indicate the other series and lattice branches, respectively identical.) Ri = miR'l, Lz = miL'l, i?6 = l/m2G'l, Ci = niiC'l, OTi = .45737, Ri = \lm,G'l, d = miC'l, Ri = miR'l Ls = niiL'l, W2 = .14456, i?i' = m.'R'l, Lz = mi'L'l, R,' = l/nii'G'l, C^' = mzC'l, mi = .04263, Rt' = l/nti'G'l, Ci = mi'C'l, Rs' = nti'R'l, L/ = mi'L'l, Mi' = .92403. Fig. 23—Artificial smooth line which simulates a moderate length, /, of line having the primary constants R', L', G', and C per unit length. (If R' = G' = 0, it becomes a non-dissipative phase network whose time-of-phase-transmission at the lower frequencies has the constant value, Tp = VL'C/.) tion is very accurate for small values of y. As y increases, the de- parture of the network propagation characteristic from the smooth line values also increases, but it amounts to less than per cent even at \y\ = , as may be derived from a comparison of (83) and (85). As an illustration of this type of design, these results were analyt- ically applied to the case of a 104-mil open-wire smooth line having the constants per loop mile (for wet weather, and assumed independent of frequency). R' = ohms; G' = micromhos; L' = mh.; C = .00837 mf. The corresponding simulating network for a length / is shown struc- turally in Fig. 23, where. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original American Telephone and Telegraph Company. [Short Hills, N. J. , etc. , American Telephone and T
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
