发明名称 Antenna device
摘要 An antenna device (1) includes: a substrate (11); a radiating electrode (13) formed on the substrate, a ground electrode (12) formed on the substrate and disposed opposite the radiating electrode, a feed line (14) as a distributed constant transmission line connected via a feed point to the radiating electrode, at least one impedance matching element (15) for impedance-matching the radiating electrode at a prescribed signal frequency by being connected in parallel with the radiating electrode to the feed line at a position a prescribed distance away from the feed. point, and a switch (16), interposed between the at least one impedance matching element and the feed line, for connecting or disconnecting the at least one impedance matching element to or from the feed line in accordance with a prescribed control signal.
申请公布号 EP2348574(B1) 申请公布日期 2016.09.21
申请号 EP20100193268 申请日期 2010.12.01
申请人 FUJITSU LIMITED 发明人 YAMAGAJO, TAKASHI;TAKANO, TAKESHI
分类号 H01Q1/38;H01Q5/335;H01Q5/357;H01Q9/14;H01Q9/40 主分类号 H01Q1/38
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