发明授权
US5701129A Helical antenna with integral J-shaped impedance and mounting element
and dual part cover
失效
具有整体J形阻抗和安装元件和双重部件盖的螺旋天线
- 专利标题： Helical antenna with integral J-shaped impedance and mounting element and dual part cover
- 专利标题（中）： 具有整体J形阻抗和安装元件和双重部件盖的螺旋天线
-
申请号： US392161申请日： 1995-02-22
-
公开(公告)号： US5701129A公开(公告)日： 1997-12-23
- 发明人: Toshifumi Itou , Hiromitsu Shimazaki , Masaaki Arita , Shougo Horinouchi
- 申请人： Toshifumi Itou , Hiromitsu Shimazaki , Masaaki Arita , Shougo Horinouchi
- 申请人地址： JPX Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX6-029580 19940228
- 主分类号： H01Q1/24
- IPC分类号： H01Q1/24 ; H01Q1/36 ; H01Q1/40 ; H01Q11/08 ; H04B1/38
摘要：
An antenna element is composed by molding with an armor, and therefore if a slight deformation is caused by external force, the antenna characteristics are hardly changed. In particular, by the helicoid constitution of the antenna, changes of the pitch of antenna element and coil length are small, so that an antenna of excellent characteristics may be obtained. Moreover, by forming a hollow part in the armor and holding part of the helicoid part by the armor, more excellent antenna characteristics may be obtained.
公开/授权文献
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