. The Bell System technical journal . *>X. X VARIATION Fig. 1 — Rectangular waveguide mode in isotropic medium for cutotT guide. position of plane waves of dependence c*^. If we represent kcartesian frame, the wave equation is satisfied for the condition ni a h = ki + hi + k; = ccns where n and f are the permeabiUt} and permittivity respectively ofthe medium. Satisfaction of wall boundary condition requires that k^and /;, be real and that each be of the order of the reciprocal of thetransverse guide dimensions. Small transverse dimensions thus cause ky~to be negative, driving the waveguide
. The Bell System technical journal . *>X. X VARIATION Fig. 1 — Rectangular waveguide mode in isotropic medium for cutotT guide. position of plane waves of dependence c*^. If we represent kcartesian frame, the wave equation is satisfied for the condition ni a h = ki + hi + k; = ccns where n and f are the permeabiUt} and permittivity respectively ofthe medium. Satisfaction of wall boundary condition requires that k^and /;, be real and that each be of the order of the reciprocal of thetransverse guide dimensions. Small transverse dimensions thus cause ky~to be negative, driving the waveguide into a cutoff condition. We shall now find that birefringence permits another class of modesin the small size ferrite loaded waveguide. Letting the magnetic axis be inthe z direction, it will be shown in the text that corresponding to anymode of the guide ky and k, are unique. Birefringence generally requiresthat two different magnitudes of k occur simultaneously, causing twodifferent values of A-^ to appear. In particular, let us postulat
Size: 2063px × 1211px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
