| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable a communication terminal device, such as a tablet PC and a smartphone, to easily perform short-range radio communication.SOLUTION: A communication terminal device 1 having a main body loop antenna 7, which is connected to a short-range radio communication circuit and disposed on the rear surface side of a case 2, includes: a coupling loop antenna 13 not electrically connected to the short-range radio communication circuit, and disposed in such a manner that the main body loop antenna 7 and a loop are overlaid substantially in parallel; and an extension loop antenna 14 electrically connected to the coupling loop antenna 13, and disposed in a different position from the coupling loop antenna 13.</p> |
