FREQUENCY TUNABLE LOW NOISE AMPLIFIER

摘要

A frequency tunable low noise amplifier 100 providing multi-band operation includes an amplifier 110 and a frequency tunable input matching network 130 including at least one varactor 141, 142 coupled to an input of the amplifier 110. The input network receives a signal from a signal source 160. The input matching network 130 includes a control input 171 for providing an impedance match to the source 160. A frequency tunable output matching network 140 includes at least one varactor 181, 182 coupled to an output of the amplifier 110. The output matching network 140 also includes a control input 191 for providing an impedance match to a load 195.