| 摘要 |
<p>A communication device includes a radiator defining a duplex antenna of a first communication system whose carrier frequency is in a first frequency band and a second communication system whose carrier frequency is in a second frequency band overlapping the first frequency band, an antenna for the second communication system, a second communication system power feeding unit which is connected to the radiator and the antenna for the second communication system, and a first communication system power feeding unit which is connected to the radiator, wherein the first communication system power feeding unit includes a circuit configured to position a communication peak frequency whose communicable distance in the first communication system is maximum, outside the second frequency band.</p> |
