Patent ID: 9467102
Filing Date: 2016-10-11
CPC Classification: H03F,H04B,H04W

Claim Text:
1. A multi-band amplifier, comprising: a first amplifying unit connected to a first antenna stage so as to transmit and receive a signal within a first frequency band; a second amplifying unit connected to a second antenna stage so as to transmit and receive a signal within a second frequency band; and a switching control unit configured to generate first and second control signals based on common control voltages, and to output the first control signal to the first amplifying unit and output the second signal to the second amplifying unit, wherein the first amplifying unit configured to amplify the signal within the first frequency band, and to alternate transmitting and receiving the signal within the first frequency band by performing a switching operation depending on the first control signal, and the second amplifying unit configured to amplify the signal within the second frequency band, and to alternate transmitting and receiving the signal within the second frequency band by performing a switching operation depending on the second control signal.