Patent ID: 9312909
Filing Date: 2016-04-12
CPC Classification: H04B

Claim Text:
1. A RF(Radio Frequency) switch comprising: a common port transmitting and receiving high frequency signals; a first switching unit including a plurality of first switching devices connected to each other in series and conducting or blocking a signal transfer path between a first port to and from which the high frequency signal is input and output and the common port; a second switching unit including a plurality of second switching devices connected to each other in series and conducting or blocking a signal transfer path between a second port to and from which the high frequency signal is input and output and the common port; a negative voltage generating unit sensing the high frequency signal from the common port and rectifying the sensed high frequency signal to generate a negative voltage; and a logic circuit unit controlling switching operations of the first and second switching units using the negative voltage provided from the negative voltage generating unit and a positive voltage provided from outside of the RF switch.