摘要 |
An electric device includes a dielectric substrate, a high frequency signal line formed on the surface of the dielectric substrate, a ground conductor facing the high frequency signal line through at least part of the thickness of the dielectric substrate, an upper electrode of capacitor disposed above the surface of the dielectric substrate and faces the high frequency signal line, and a liquid crystal material filled in a space defined between the high frequency signal line and the upper electrode of capacitor. |