| 摘要 |
A chip antenna has pattern antennas A 1 , A 2 ' which are formed on a plurality of layers of a base member of a stacked structure and of which at least parts of their patterns are not overlapping with each other in the stacked direction, and a feeding terminal 12 which is formed on a surface of the base member and which is connected to the pattern antennas A 1 , A 2 '. By deleting an overlap with each other in the stacked direction between their patterns of pattern antennas A 1 , A 2 ', one pattern antenna can be adjusted to have an optimized resonant frequency without influencing frequency characteristics of another pattern antenna. The pattern antenna A 2 ' has a first area of a rectangular shape and a second area elongating continuously from the first area. Upon adjusting a length of an arm in the direction that the second area elongates in the first area and a length of the second area, a desirable resonant waveform can be obtained
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