| 摘要 |
PROBLEM TO BE SOLVED: To easily change the directivity of an antenna in a wireless LAN device. SOLUTION: A first substrate 11 on which a conductive pattern functioning as a radiator 21 is formed and a second substrate 12 on which conductive patterns 22 and 23 functioning as a waveguide and a reflector, respectively, are formed are slidably stored in an inner case 15 and an outer case 16, and a resultant antenna assembly 10 is attached on an access point 40 through a three-dimensional joint 50. The antenna assembly 10 is easily switched to an arrangement wherein the wave guide, radiator, and reflector arranged in parallel at prescribed intervals constitute a Yagi-Uda antenna having strong directivity to signals of 2.4 GHz or an arrangement where conductive patterns 22 and 23 do not function as the wave guide and the reflector or the antenna assembly 10 functions as a non-directional antenna by loosening a screw 18 to change the positional relation between the inner case 15 and the outer case 16. COPYRIGHT: (C)2005,JPO&NCIPI
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