| 摘要 |
PROBLEM TO BE SOLVED: To reduce unwanted waves generated due to mixing between local oscillation signals, even when a corresponding radio frequency band is increased.SOLUTION: The communication instrument comprises: a plurality of local oscillation signal generation units for generating a plurality of local oscillation signals of different frequencies; and a frequency conversion unit for converting a plurality of frequencies of radio frequency band by using a plurality of local oscillation signals. The plurality of local oscillation signal generation units generate the plurality of local oscillation signals so as to satisfy the conditions that the frequency is an integral multiplication of some base frequency, the frequency of some local oscillation signal is not an integral multiplication that of other local oscillation signal, and the frequency of some two or more local oscillation signals do not match the sum and difference of a plurality of other local oscillation signals. |
