| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device capable of downsizing a ground pattern and exerting desired performance while downsizing the antenna device and a design method of the same.SOLUTION: The antenna device includes: a ground pattern; and an antenna element, grounded by being disposed so as to face the ground pattern by being separated by a predetermined distance. The antenna element has an element length of a predetermined length and is shaped so that reduction in input impedance value against a reference input impedance matching value of the antenna device when the ground pattern is downsized is compensated.SELECTED DRAWING: Figure 1 |
