ANTENNA

PROBLEM TO BE SOLVED: To provide an antenna which has high affinity with the body and suppresses losses due to the body. SOLUTION: The antenna has a first conductive material pattern 11 formed of a flexible planar conductive material and having a recess at a linear edge side; a second conductive material pattern 12 receiving and feeing electric power from and to the first conductive material pattern 11 through a power reception/feeding portion 30 at a center part of a recess base 111; and third conductive material patterns 13 which short-circuit to the first conductive material pattern 11 on both sides of the second conductive material pattern 12 and are passive. The shapes of the second conductive material pattern 12 and third conductive material patterns 13 are changed to obtain compactness, stable characteristics, a wide band, easiness in attachment and detachment, and low cost. COPYRIGHT: (C)2009,JPO&INPIT