| 摘要 |
<p>PROBLEM TO BE SOLVED: To attain reduction in size and low power consumption, by using a shared circuit to use a 1st local oscillating frequency for reception and a 2nd local oscillation frequency for transmission in common which is required for respective frequency bands, with respect to a dual band radio communication unit. SOLUTION: The radio communication unit, that sends/receives a radio signal with a 1st wireless frequency band and a radio signal with a 2nd radio frequency band, is such that the output frequency of a reception use local oscillation circuit is supplied to a 1st mixer circuit, and the output frequency of a transmission use local oscillation circuit is supplied to a 2nd mixer circuit via a frequency divider.</p> |
