| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device which has a structure that asymmetric two antenna elements operating in the same frequency band are arranged in a portable wireless terminal and reduces an amount of current that is canceled each other in the antenna elements to acquire low-coupled and high-gain performance, and a portable wireless terminal mounted with the antenna.SOLUTION: A first connection circuit 108 makes adjustment so as to cancel mutual coupling impedance between a first antenna element 106 and a second antenna element 107 in a first frequency band, and reduces coupling degradation between the antenna elements. A projection length b of a projection portion 110 of the first antenna element 106 and a folding length a of a folding portion 109 of the second antenna element 107 are changed to a specified length. With this structure, low-coupled and high-efficient antennas that operate in the same frequency are realized for the portable wireless terminal. |
