Patent ID: 8766676

Claim:
A down converter, comprising: an amplification unit including: a first amplifier to which a first polarized wave signal is supplied; and a second amplifier to which a second polarized wave signal is supplied; a first down converter circuit including: a first reference signal generation unit for generating a first reference signal; a first local oscillation unit for generating a first local oscillation frequency signal using the first reference signal; a first frequency-divider for generating a first frequency-divided signal obtained by frequency dividing the first local oscillation frequency signal; and a first frequency conversion unit for converting a signal amplified by the amplification unit into a first intermediate frequency signal using the first frequency-divided signal; and a second down converter circuit including: a second reference signal generation unit for generating a second reference signal; a second local oscillation unit for generating a second local oscillation frequency signal using the second reference signal; a second frequency-divider for generating a second frequency-divided signal obtained by frequency dividing the second local oscillation frequency signal; and a second frequency conversion unit for converting a signal amplified by the amplification unit into a second intermediate frequency signal using the second frequency-divided signal, wherein a difference frequency between a frequency of the second local oscillation frequency signal and a frequency of the first frequency-divided signal is higher than an upper limit of a receive frequency band of a first receiver for receiving the first intermediate frequency signal.