| 摘要 |
PROBLEM TO BE SOLVED: To provide a planar antenna capable of changing impedance at a feeding point and correcting a polarization direction. SOLUTION: The present invention relates to a planar antenna including a slot (F), provided on a substrate in the shape of a closed curve, of which a size is determined to operate in one frequency, to which power is supplied from a feeder line (L) crossing the slot (F) at a point known as a feeding point (E), wherein at least two short-circuiting circuits (SCs) are disposed in parallel on the slot (F) with respect to the feeding point (E) so as to match impedance to the feeding point (E) and/or polarization of the antenna. COPYRIGHT: (C)2006,JPO&NCIPI
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