| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna device in which variation of antenna characteristics is reduced and its structure and characteristics become approximately identical even if a feed position is changed. SOLUTION: The antenna device 100 is provided with an antenna block 10 and a mounting substrate 20 on which the antenna block 10 is mounted. The mounting substrate 20 is provided with a ground pattern 22 formed around an antenna mounting area 21, first and second lands 23, 24 provided in the antenna mounting area 21 corresponding to positions of first and second pad electrodes 13, 14 and a connection conductor pattern 25 for connecting the second land 24 to a feed line 26. Since the connection conductor pattern 25 is not formed as a conductor on the side of the antenna block 10 but formed as a conductor on the mounting substrate 20, the connection conductor pattern 25 is not influenced by printing precision of a conductor pattern on a base 11 and position accuracy between the connection conductor pattern 25 and the ground pattern 22 is sufficiently secured. COPYRIGHT: (C)2008,JPO&INPIT
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