| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wireless terminal installation device which reduces influence on wireless terminal communication. <P>SOLUTION: A center part of a printed circuit board 351 is a conductor non-forming part 353 which a conductor such as a wiring is excluded. A center part of an iron plate 362 on a casing bottom 36 is an opening part 363, and the opening part 363 also forms a conductor non-forming part. A parasitic antenna 354 is provided inside the conductor non-forming part 353. The parasitic antenna 354 is not connected with an antenna of a wireless terminal 11 through a high frequency electric circuit, and does not supply an electric wave to the antenna of the wireless terminal 11 through an electric circuit but transmits the electric wave spatially. That is, the parasitic antenna 354 has a function as a wave director which reradiates the electric wave received from a base station and the like, controls directivity of the electric wave, and supplies the electric wave to the antenna of the wireless terminal 11. <P>COPYRIGHT: (C)2012,JPO&INPIT |
