| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an antenna apparatus capable of promoting space saving, controlling a resonant frequency and further improving a gain in an upper frequency band between two frequency bands. <P>SOLUTION: An antenna apparatus 10 according to the present invention is an antenna apparatus capable of transmitting/receiving radio waves of different two frequency bands, comprising a substrate 11, an antenna electrode 12 formed on an upper surface 11A of the substrate 11, and a power feeding electrode 13 formed on a lower surface 11B of the substrate 11, wherein an inductor component electrode 17 is formed on a first lateral side 11C of the substrate 11, a capacitor component electrode 18 is formed on a second lateral side 11D of the substrate 11, the inductor component electrode 17 and the capacitor component electrode 18 are connected in parallel between the antenna electrode 12 and the power feeding electrode 13 and further, a second capacitor component electrode 20 taking a capacitor component with the inductor component electrode 17 is formed on the first lateral side 11C of the substrate 11. <P>COPYRIGHT: (C)2008,JPO&INPIT |
