. The Bell System technical journal . o ^ 610 THE BELL SYSTEM TECHNICAL JOURNAL, MAY 1954 Thus, when c 9^ 1, the jS^ values, for p = 0, are evidently independentof 0- and are just those of an isotropic medium. When a = l(n = k = ^),p = 0, jSMs indeterminate and for p small, there is a small region near0- = 1, of width ^p, in which /3 differs appreciably from the isotropicvalue. The convergence of an expansion of (3^ in powers of p[(61) and (62)]shows a marked dependence on cr. The scheme of analysis described above will now be illustratedin detail by a discussion for a radius ro between

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. The Bell System technical journal . o ^ 610 THE BELL SYSTEM TECHNICAL JOURNAL, MAY 1954 Thus, when c 9^ 1, the jS^ values, for p = 0, are evidently independentof 0- and are just those of an isotropic medium. When a = l(n = k = ^),p = 0, jSMs indeterminate and for p small, there is a small region near0- = 1, of width ^p, in which /3 differs appreciably from the isotropicvalue. The convergence of an expansion of (3^ in powers of p[(61) and (62)]shows a marked dependence on cr. The scheme of analysis described above will now be illustratedin detail by a discussion for a radius ro between Ui and ji , which, if theferrite were unmagnetized, would propagate the TEn-mode alone. Figs. 8(c) and 8(d) show the division of the \ — cr plane into regions ofpositive and negative G(\, a) by the various / and 0 curves. A few con-tours of constant G are plotted to indicate the behavior of the functionin more detail. That part of the X - o- plane which is excluded by the 0-0

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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1