| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device that can reduce the area of a radiation conductor and exhibits wide-band characteristics, and has a superior plane structure. SOLUTION: The antenna device includes: two radiating elements; a via for grounding the tip of one radiation conductor to the ground of a lower layer; a ground conductor for connecting the respective radiation elements at roots via a resistor; and a feeder to each radiation element. The two radiation elements are shorter than 1/4 of a wavelength determined by the minimum frequency of a transmission band, thus reducing an occupation area of an antenna as compared with a W×L size determined by an effective wavelengthλ<SB>g</SB>. COPYRIGHT: (C)2009,JPO&INPIT
|
