An antenna receiver includes a plurality of mixers for frequency-converting signals
received by a plurality of antennas into intermediate-frequency signals; a plurality
of local oscillators, which correspond to the plurality of mixers and which supply
local oscillation signals having the same frequency to the mixers; a plurality
of PLL circuits, which correspond to the plurality of local oscillators and which
set the frequency of the local oscillation signals; and an adder for adding the
intermediate-frequency signals output from the mixers. The phases of reference
signals supplied to the PLL circuits can be changed independently from each other.
