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By Stanislovas Staras; et al

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Of. calculations. using. the. electrodynamical. method. correspond. to. helical. systems. containing. infinitely. thin. helical. conductors. and. is. obtained. when. the. thickness. of. helical. conductors. is. at. least. two. times. less. than. the. gap. dielectric.. With. a. nonhomogeneous. dielectric. (curves. 2,. 4,. and. 5),. the. values. of. the. retardation. factor. and. characteristic. impedance. in. the. high-frequency. range. obtained. using. the. multiconductor. line. method. are. dependent.

Is. at. least. two. times. less. than. the. gap. dielectric.. With. a. nonhomogeneous. dielectric. (curves. 2,. 4,. and. 5),. the. values. of. the. retardation. factor. and. characteristic. impedance. in. the. high-frequency. range. obtained. using. the. multiconductor. line. method. are. dependent. on. conductors.. Unfortunately,. methods. used. in. Staras. and. Gaivelis. [11]. for. calculation. of. conductors. relatively. simulation. ways. characteristics. of. symmetrical. system. and. curves.

Wave. field. form:   ∂E rot H = ε ,. ∂t   ∂H rot E = −µ ,. ∂t  div E = 0, . 3)  div H = 0, . 2)   where. and. conductors.. w1. the. the. a. line. 29 Multiconductor Line Method The. conductors. of. the. line. are. ideal,. and. the. electromagnetic. field. does. not. conductors. 5) ∇ H − εµ 2 = 0, . 6) ∇ E − εµ 2 = 0. used, ∇2 = ∂2 ∂2 ∂2 .. 7) Equations. 5). and. 6). are. the. homogeneous. vector. (d’Alembert). wave. velocity. v = 1/ εµ . in. we. field. solution. E = E( x , y , z, t). frequency.

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