A low noise converter includes a plurality of amplification circuits receiving a plurality of polarized wave signals transmitted from a satellite for amplifying the plurality of polarized wave signals, respectively, a plurality of switch circuits, each selecting one of outputs from the plurality of amplification circuits, a plurality of filter circuits provided corresponding to the plurality of switch circuits, respectively, for removing an image signal, a plurality of signal mixer-amplifiers provided corresponding to the plurality of filter circuits, respectively, to frequency-convert each output from the plurality of filter circuits by mixing with a local oscillation signal and to amplify the frequency-converted signal, and a plurality of output ports provided corresponding to the plurality of signal mixer-amplifiers, respectively, to receive an output from the plurality of signal mixer-amplifiers.