发明名称 ANTENNA DEVICE AND COMMUNICATION EQUIPMENT USING THE DEVICE
摘要 An antenna device,comprising a first antenna element having one end opened and the other end connected to a power supply part and a second antenna element having both ends opened and disposed on the outer peripheral surface of the first antenna element in insulated state,wherein the other end of the first antenna element is connected to the power supply part through a ring−shaped first conductor part.
申请公布号 WO03028149(A1) 申请公布日期 2003.04.03
申请号 WO2002JP09573 申请日期 2002.09.18
申请人 MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;IGUCHI, AKIHIKO;SATOH, YUKI;FUKUSHIMA, SUSUMU 发明人 IGUCHI, AKIHIKO;SATOH, YUKI;FUKUSHIMA, SUSUMU
分类号 H01Q21/30;H01Q1/24;H01Q1/36;H01Q1/38;H01Q1/48;H01Q5/00;H01Q5/01;H01Q9/04;H01Q9/30;H01Q9/42;H01Q13/08;H04B1/38;H04M1/02;(IPC1-7):H01Q1/24 主分类号 H01Q21/30
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