| 摘要 |
There has been a problem that a mode (a high-order mode) different from a basic propagation mode occurs at a point of a through conductor and a transmission characteristic deteriorates greatly. The present invention is a high-frequency wiring board wherein L>lambda/4 and pi(A+B)<=lambda are satisfied in which L is a length of a through conductor, A is a diameter of the through conductor, B is shortest distances between the through conductor and a plurality of ground through conductors, pi is a circle ratio and lambda is an effective wavelength of a high-frequency signal transmitted by the through conductor. It is possible to inhibit a high-order mode which occurs at a point of the through conductor.
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