Transmission of RF signals along a plasma column

【作者】 张林； 欧阳吉庭；

【Author】 Zhang Lin Ouyang Jiting School of Physics,Beijing Institute of Technology,Beijing 100081

【机构】 School of Physics,Beijing Institute of Technology；

【摘要】 <正>A plasma column was used to transmit radio frequency(RF) signal.The plasma column was produced in a long glass tube filled with low-pressure argon.The transmission, reflection and radiation of RF signals at different frequencies along the plasma column were measured under different plasma conditions and compared with a metal column.The results show that the RF transmission increases with the discharge power and approaches the feature of metal column when the power reaching a critical value.The standing wave ratio(SWR) and impedance of plasma column also become similar to the metal.The dense plasma can act as a conductor to transmit RF signals without significant attenuation within a large range of column length.更多还原

【Abstract】 A plasma column was used to transmit radio frequency(RF) signal.The plasma column was produced in a long glass tube filled with low-pressure argon.The transmission, reflection and radiation of RF signals at different frequencies along the plasma column were measured under different plasma conditions and compared with a metal column.The results show that the RF transmission increases with the discharge power and approaches the feature of metal column when the power reaching a critical value.The standing wave ratio(SWR) and impedance of plasma column also become similar to the metal.The dense plasma can act as a conductor to transmit RF signals without significant attenuation within a large range of column length.更多还原