| 摘要 |
PURPOSE: A rotary joint is provided to separate a first impedance matching unit and a rotary shaft, and is provided to electrically connect the rotary shaft with a first input-output unit of a fixing unit by the coupling, thereby preventing the abrasion by the physical contact. CONSTITUTION: A fixing unit (102) is mounted on a fixture. A rotating unit (104) is mounted on a rotator. One side of a rotary shaft (106) is combined to the fixing unit. The other side of the rotary shaft is combined to the rotating unit. A bearing unit (120) is combined to one side of the rotary shaft. A first impedance matching unit (112) generates the coupling with the rotary shaft and electrically connects the rotary shaft to a first input/output (I/O) unit (108) of the fixing unit. A second impedance matching unit (114) is formed in the rotary shaft and electrically connects the rotary shaft to a second I/O unit (110) of the rotating unit. |
