专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5825335A Sheet antenna apparatus 失效
标题翻译：薄片天线装置
公开(公告)号：US5825335A
公开(公告)日：1998-10-20
申请号：US726905
申请日：1996-10-07
申请人： Hiroyuki Arai , Hiroshi Mura , Hideo Sakata , Takahiro Mizoguchi , Kensuke Ishida , Hiroshi Niimi
发明人： Hiroyuki Arai , Hiroshi Mura , Hideo Sakata , Takahiro Mizoguchi , Kensuke Ishida , Hiroshi Niimi
IPC分类号： H01Q1/38 , H01Q1/44 , H01Q5/00 , H01Q5/371 , H01Q7/00
CPC分类号： H01Q1/38 , H01Q1/44 , H01Q5/371 , H01Q7/00
摘要： A sheet antenna apparatus capable of favorably receiving vertically polarized electromagnetic waves is provided which includes an antenna element 11 comprising a main antenna portion 15 having a vertical segment 19, a pair of upper and lower lateral segments 20 and 21 respectively extending laterally from opposite ends of the vertical segment 19 and a pair of feeder segments 22 respectively extending inwardly from the terminating ends of the lateral segments 20 and 21, and a parasitic antenna element comprising an inner loop portion 16 and an outer loop portion 17 which form a double loop and are disposed as adjoining to one of the lateral segments 20 and 21. The vertical segment 19 of the antenna element 11 substantially coincides with the direction of vertically polarized electromagnetic waves and hence receives vertically polarized electromagnetic waves favorably. Further, when the frequency of received electromagnetic waves is high, the inner loop portion 16 becomes resonant with the main antenna portion 15, while when the frequency of received electromagnetic waves is low, the outer loop portion 17 becomes resonant with the main antenna portion 15. Thus, the antenna apparatus can successfully receive vertically polarized electromagnetic waves within an extensive frequency range.
摘要翻译：提供能够有利地接收垂直极化电磁波的片状天线装置，其包括天线元件11，天线元件11包括具有垂直段19的主天线部分15，以及分别从垂直段19和分别从横向段20和21的终止端向内延伸的一对给料段22和一个包括形成双回路的内环部分16和外环部分17的寄生天线元件，设置成与横向段20和21中的一个相邻。天线元件11的垂直段19基本上与垂直极化的电磁波的方向重合，因此接收垂直极化的电磁波。此外，当接收的电磁波的频率高时，内环部分16变得与主天线部分15谐振，而当接收的电磁波的频率低时，外环部分17与主天线部分15共振因此，天线装置可以在广泛的频率范围内成功地接收垂直极化的电磁波。

IPRDB

热门服务

关于我们

友情链接

联系方式