| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an antenna device which prevents the deterioration of the voltage standing wave ratio (VSWR) at the 1700 MHz band even though the size is reduced. <P>SOLUTION: A first element 30 and a second element 31 are formed on a surface of an antenna substrate 13. The first element 30 is formed by a loop element 30a and a T shaped element 30b formed in the loop element 30a, and the second element 31 is formed by a loop element 31a and a T shaped element 31b formed in the loop element 31a. The loop element 30a, 31a respectively have taper parts extending from power supply parts. A first parasitic element 33 and a second parasitic element 34 are formed on a rear surface of the antenna substrate 13 so as to respectively face the first element 30 and the second element 31. This structure allows an antenna part 2 to serve as a small size wideband antenna part. <P>COPYRIGHT: (C)2013,JPO&INPIT |
