| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna with which a lengthwise length can be shortened rather than the 1/4 wavelength of a prescribed frequency to be resonated and further another prescribed second frequency can be resonated as well. SOLUTION: A linear conductor 10 is turned out at 180 about twice so as to invert the base end side and top end side, and linear conductors 10a, 10a and 10a of sections overlapped by this turning-out are mutually separated and parallelly disposed. The length extended from an antenna input/output terminal provided on the base end side of this linear conductor 10 to the top end of the linear conductor 10 is defined as a length capable of resonating the prescribed frequency. Besides, the length extended from the antenna input/output terminal provided on the base end side of the linear conductor 10 to the first turn is defined as a length capable of resonating the prescribed second frequency. |
