公开(公告)号：US5164739A

公开(公告)日：1992-11-17

申请号：US678097

申请日：1991-04-01

申请人： Hideshi Koide ,  Yuichi Murakami ,  Kiyokazu Ieda ,  Kazuo Sato

发明人： Hideshi Koide ,  Yuichi Murakami ,  Kiyokazu Ieda ,  Kazuo Sato

IPC分类号： H01Q1/10 ,  H01Q1/32 ,  H01Q1/46 ,  H01Q1/50 ,  H01Q5/15

CPC分类号： H01Q1/10 ,  H01Q5/40

摘要： An antenna device is comprised of a base member fixed to an automobile body, a first mast member, a second mast member and a third mast member. The third mast member is supported by the base member, the second mast member is supported by the third mast member and includes a plurality of telescopic elements and the first mast member is supported by one end of the second mast member and located away from the automobile body. A feeder conductor is connected to the first mast member through an impedance matching coil with the feeder conductor and the coil being molded in a resin elevation member. The resin elevation member extends through the second and third mast members and has an enlarged portion which surrounds the coil. The enlarged portion of the resin elevation member is in engagement with the second mast member and elevates the second mast member upon movement away from the automobile body.

摘要翻译： 天线装置包括固定到汽车车身的基座部件，第一桅杆部件，第二桅杆部件和第三桅杆部件。 第三桅杆构件由基部构件支撑，第二桅杆构件由第三桅杆构件支撑并且包括多个伸缩元件，并且第一桅杆构件由第二桅杆构件的一端支撑并远离车辆 身体。 馈线导体通过阻抗匹配线圈与馈线导体连接到第一桅杆构件，线圈被模制在树脂升高构件中。 树脂升降构件延伸穿过第二和第三桅杆构件，并且具有围绕线圈的扩大部分。 树脂升降构件的扩大部分与第二桅杆构件接合并且在离开汽车车身的移动时提升第二桅杆构件。