| 摘要 |
The present invention relates to an antenna device using a grounding line of a circuit comprising: a switch circuit to control to open or make a grounding area and a non-grounding area short wherein the switch circuit has the grounding area and the non-grounding area; and a radio frequency (RF) signal transmitting unit to control to transmit a radio frequency (RF) signal using the grounding area when the ground area and the non-grounding area are opened. The antenna device drastically reduces a development lead time. |
