| 摘要 |
PROBLEM TO BE SOLVED: To provide a space-saving antenna device capable of securing a satisfactory matching state.SOLUTION: The antenna device includes a tabular or film-shaped metal substrate 502. A slot 503 is disposed on the metal substrate 502 in such a manner as to have a notch port at the edge near the end part of the metal substrate 502 and to have a length of one-tenth of a resonant frequency wavelength or greater. Further, a feeding point 504 is disposed at a distance of one-tenth of the resonant frequency wavelength or shorter from near the tips of the regions of the metal substrate 502 between which the slot 503 intervenes. An antenna 501 is connected to the metal substrate 502 through the feeding point 504, and juxtaposed with the metal substrate 502.SELECTED DRAWING: Figure 22 |
