| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure for firmly fixing a built-in antenna to a printed circuit board while preventing antenna characteristic deterioration, and also to provide an assembling method. SOLUTION: An adhesive 5 is applied onto parts near the intersecting parts between side faces of the built-in antenna 3 and the printed circuit board 2 in order to fix to the printed circuit board 2 the built-in antenna 3 arranged on the printed circuit board 2 incorporated in a portable terminal and electrically connected to print patterns 2a and 2b of the printed circuit board 2, through holes 6a and 6b are provided in an adhesive lubrication area of the printed circuit board 2, wherein the diameter of the through holes 6a and 6b has length that allows the adhesive 5 to flow into the through holes 6a and 6b and prevents the adhesive 5 from flowing out by surface tension, the through holes 6a and 6b absorb an excessive adhesive, and the adhesive 5 in the through holes 6a and 6b firmly fixes the built-in antenna 3 to the printed circuit board 2. This solves the problem wherein strong impact such as falling impact sometimes breaks a terminal soldered part because an antenna built in a portable terminal is conventionally ten times to tens of times as heavy as the other chip components. COPYRIGHT: (C)2004,JPO&NCIPI
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