发明名称 EXPANSIBLE ANTENNA, AND PORTABLE WIRELESS TERMINAL PROVIDED WITH THE SAME
摘要 PROBLEM TO BE SOLVED: To provide a portable electronic apparatus provided with an expansible antenna capable of obtaining an electric length longer than heretofore without making the apparatus large in size and heavy in weight. SOLUTION: In a portable telephone in this invention provided with the expansible antenna, a first stage antenna element 51 and a second stage antenna element 52 constituting the antenna are mutually connected coaxially. The first stage antenna element 51 is provided with a core body 55 formed by winding a metallic wire 50 spirally at a prescribed pitch, the core body 55 is wound with a gap G between unit winding parts arranged at a prescribed pitch, and the gap G is filled up with an insulating member 56 spirally extending between the unit winding parts. COPYRIGHT: (C)2004,JPO&NCIPI
申请公布号 JP2004214745(A) 申请公布日期 2004.07.29
申请号 JP20020378778 申请日期 2002.12.27
申请人 SANYO ELECTRIC CO LTD;SANYO TELECOMMUNICATIONS CO LTD 发明人 KIMURA YOSHIYUKI
分类号 H01Q1/10;H01Q1/24;H01Q1/36;H01Q1/40;(IPC1-7):H01Q1/10 主分类号 H01Q1/10
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