Analysis of the leaky-wave behavior on multimedia-oriented planar transmission lines

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The research results are itemized as follows :(1) Analysis of behavioral feature of intricate modal relations among several complex modes.Evidences of mutual relations among the guided mode, the surface-wave leaky mode and the space wave leaky mode at high frequencies.(2) Discovery of a new type of the leaky mode and the leaky-wave-mode coupling.Mode coupling effect between the already known leaky mod and the newly-discovered surface-wave-like mode.(3) Fast wave (space-wave leaky mode) on uniform printed-circuit transmission lines and evidence of its generation.Analysis of the unusual behavior of the space-wave leaky mode at low frequencies.(4) Analysis of the influence of the nonphysical mode on the field excited by an practical EM source.Discussions of the effect of the improper-real mode (nonphysical solution) to the physically excited field.(5) Discovery of the indirect effect of a nonphysical solution to the physically excited field and its evidence.Evidences for the discussions of the item (4) and further discussions for developing high-performance-oriented transmission lines.(6) Useful chart for designing high-performance-oriented printed-circuit transmission lines.