| 摘要 |
PROBLEM TO BE SOLVED: To provide a small-sized antenna with cubic volume smaller than that of inverted F type antenna and which is not required to be arranged on a wiring substrate of equipment regarding a built-in type antenna to be arranged in radio equipment represented by a cellular phone. SOLUTION: An antenna element 31 fixed to a base part 21 is constituted as so called a monopole type folded pattern by arranging a plurality of branched parts 33A in parallel relation with a lower surface part 25 of the base part 21 and coupling the branched parts 33A in the vertical direction on the side of the other end part of the base part 21 by a coupling part 33B, and a connection part 35 of the antenna element 31 is projectedly provided on the side of the base part 21. Thus, area of the antenna element 31 is made small, the cubic volume is reduced and electric connection is contrived by arranging the antenna in line on a wiring substrate 52 of the equipment. COPYRIGHT: (C)2004,JPO&NCIPI
|
