| 摘要 |
PROBLEM TO BE SOLVED: To suppress a quadrature error caused by a phase error of a 90° phase shifter.SOLUTION: A multi-channel simultaneous receiver includes: a plurality of local oscillators for generating oscillation signals; a first selecting part for selecting the plurality of oscillation signals to either of outputs; a plurality of phase shift parts for accepting each of the first selecting part outputs, and outputting shifted signals which are 90° shifted inputted signals; a second selecting part for selecting the shifted signal outputs outputted by the plurality of the phase shift parts to either of outputs; a plurality of quadrature demodulation parts for inputting a reception signal, and generating a baseband signal using either one of the plurality of oscillation signals and an oscillation signal selected based on a combination of the first selected signal and the second selected signal; and a combining part for combining each of the baseband signals. |
