| 摘要 |
A variable directivity slot antenna includes: ground conductors 101a and 101b, which are divided by a slot region 109 both of whose ends are open ends 111a and 111b; a feed line 115 having a loop shape at a feeding site 113 for the slot region 109; a first selective conduction path 119 connecting between the ground conductors 101a and 101b in a direction of the open end 111a as viewed from the feeding site 113; and a second selective conduction path 121 connecting between the ground conductors 101a and 101b in a direction of the open end 111b as viewed from the feeding site 113. Depending on the driving state, the first selective conduction path 119 and the second selective conduction path 121 are controlled into a conducting or open state.
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