PURPOSE: To realize a high dimension accuracy and a light weight, and to adjust the characteristic of an antenna while an antenna module is mounted on a printed circuit board after manufacture.
CONSTITUTION: An antenna element conductive layer 22 made of a metallic foil, and a ground conductive layer 23 are adhered and fixed to the surface of a resin forming body 21 molded like a prescribed shape, and a feeder is drawn out from the pertinent antenna element conductive layer 22. Moreover, a plate member 25 inserted into the inside of the resin forming body 21 is attached so as to be folded to the resin forming body 21. Capacity between the antenna element conductive layer 22 and the ground conductive layer 23 is equivalently changed by sliding the plate member 25, so that the characteristic of the antenna can be adjusted.
INAGAKI MITSUO
AZUMAGUCHI YUTAKA
FUSE KENICHI
SHIROISHI HIROKAZU
AMANO TOSHIAKI
FURUKAWA ELECTRIC CO LTD