发明名称 ON-VEHICLE ANTENNA
摘要 PROBLEM TO BE SOLVED: To house a GPS(global positioning system) antenna part and an antenna part for telephone in a small-sized antenna case. SOLUTION: A GPS antenna part 4 is housed in a GPS antenna housing part 3b formed on an elliptical metal base 3. An antenna part 5 for telephone consists of a linear element part and a circular crown part which is provided in the tip of the element part and is bent downward so as to be an umbrella shape. Because the crown part is bent downward, capacity produced between the metal base 3 operating as a ground plane and the crown part becomes large enough to make the diameter of the crown part small. Thus, it is possible to make the shape of the antenna part 5 for telephone small and to house the part 5 in an antenna case consisting of a cover 2 and the metal base 3.
申请公布号 JP2000077923(A) 申请公布日期 2000.03.14
申请号 JP19980246814 申请日期 1998.09.01
申请人 NIPPON ANTENNA CO LTD 发明人 SEKI KOICHI;KAMIYA AKIO
分类号 H01Q1/12;H01Q1/22;H01Q1/32;H01Q5/00;H01Q9/36;H01Q13/08;H01Q21/28;H01Q23/00;(IPC1-7):H01Q1/32 主分类号 H01Q1/12
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