| 摘要 |
A multi connection switching apparatus in a multimedia device is provided to acquire an effective result in band flatness for an on-resistance by varying a bandwidth with a dielectric constant. A multi connection switching apparatus in a multimedia device includes a conductive layer, a ground layer, and dielectric layers(20-1 to 20-N). The multi connection switching apparatus in the multimedia device includes a multi connection layer to which external input/output apparatuses with different types are connected. The conductive layer or the ground layer serves as one layer of the multi connection layer. The dielectric layers include two or more layers in the multi connection layer and have different frequency bands and impedances in a switching mode through combination of dielectric constants.
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