| 摘要 |
Disclosed is a planar EBG structure that can secure a highly efficient radio-wave propagation suppression effect using residual space that is smaller than one whole planar EBG element. By means of structuring EBG elements provided as a row (edge row) of one of the edge parts of the planar EBG structure in a manner so as to be severed at a position that is smaller than the width of the EBG element, the radio-wave propagation suppression effect of the planar EBG structure can be improved with a small number of rows. Specifically, by means of causing the edge row of EBG elements to be at least ¾ and less than 1, a high radio-wave propagation suppression effect can be obtained with a simple structure.
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