SMALL ANTENNA

摘要

PURPOSE: A small antenna is provided to achieve a high degree of freedom when mounting the antenna on a circuit board and more miniaturized. CONSTITUTION: A small antenna(10) includes a planar dielectric substrate(12), an antenna conductor(14) provided on a surface of the dielectric substrate(12), and a feeder terminal part(16) provided at a corner portion of another surface of the dielectric substrate(12). The antenna is formed to have substantially a 1/4 wavelength of a transmission/reception frequency signal. The antenna conductor(14) has a first meander part(14a) and a second meander part(14b). The first meander part(14a) is formed in such a manner that the meander conductor travels from the first end arranged at the end portion of the substrate to a certain direction. The second meander part(14b) is formed in such a manner that the meander conductor travels to a width direction of the meander conductor of the first meander part(14a) from the second end of the first meander part(14a).