| 摘要 |
PROBLEM TO BE SOLVED: To provide a space-saving antenna device of low manufacturing cost, capable of exhibiting high reception sensitivity performance, using an integrated antenna configured of identical antennas conforming to a plurality of radio communication methods.SOLUTION: An antenna device 10 includes: a first conductor element 1 having a perturbation portion 2 of which mutually opposite two corners in one diagonal direction of an approximate square are notched; a second conductor element 5 disposed on the identical plane to the first conductor element 1 in a manner to enclose the first conductor element 1 with a predetermined gap; a first power supply terminal 3 disposed on the first conductor element 1; a ground terminal 4 disposed on the first conductor element 1; and second power supply terminals 6, 7 disposed on both end portions produced by cutting a portion of the second conductor element 5. As a first antenna, it is operated with the first conductor element 1 as a radiation element and the second conductor element 5 as a ground conductor. Also, as a second antenna, the second conductor element 5 is operated as a loop antenna. |
