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

US06184844B2 Dual-band helical antenna 失效
标题翻译：双频螺旋天线
公开(公告)号：US06184844B2
公开(公告)日：2001-02-06
申请号：US08826289
申请日：1997-03-27
申请人： Daniel Filipovic , Ali Tassoudji , Stephen B. Tidwell
发明人： Daniel Filipovic , Ali Tassoudji , Stephen B. Tidwell
IPC分类号： H01Q136
CPC分类号： H01Q21/28 , H01Q1/362 , H01Q5/378 , H01Q5/40 , H01Q11/08
摘要： A dual-band helical antenna provides operation in two frequency bands. The dual-band helical antenna includes two single-band antennas, each having a feed network, a ground plane opposite the feed network, and a set of one or more radiators extending from feed network. According to one aspect of the invention, a tab extends from the feed network of one of the antennas which provides a feed for that antenna. The tab also provides a path for current to flow from the radiators of the second antenna along the axis of the second antenna to thereby increase the energy radiated in the directions perpendicular to the axis. According to another feature of the invention, the ground plane of one antenna is used as a shorting ring for the other antenna.
摘要翻译：双频螺旋天线提供两个频带的操作。双频带螺旋天线包括两个单频带天线，每个具有馈电网络，与馈电网络相对的接地平面以及从馈电网络延伸的一组或多个辐射器组。根据本发明的一个方面，突片从天线之一的馈电网络延伸，其提供用于该天线的馈电。该突片还提供了一个用于电流从第二天线的辐射器沿第二天线的轴流动的路径，从而增加沿垂直于该轴线的方向辐射的能量。根据本发明的另一个特征，一个天线的接地平面用作另一个天线的短路环。

2. 发明授权

US5990847A Coupled multi-segment helical antenna 失效
标题翻译：耦合多段螺旋天线
公开(公告)号：US5990847A
公开(公告)日：1999-11-23
申请号：US640298
申请日：1996-04-30
申请人： Daniel Filipovic , Ali Tassoudji
发明人： Daniel Filipovic , Ali Tassoudji
IPC分类号： H01Q1/36 , H01Q11/08 , H01Q1/24
CPC分类号： H01Q11/08
摘要： A coupled multi-segment helical antenna is provided having a length that is shorter than otherwise obtainable for a conventional half-wavelength antenna. The coupled multi-segment helical antenna includes radiator portion having a plurality of helically wound radiators extending from one end of the radiator portion to the other end of the radiator portion. Each radiator is made up of a set of two or more segments. A first segment extends in a helical fashion from the first end of the radiator portion toward the second end of the radiator portion. The second segment extends in a helical fashion from the second end of the radiator portion toward the first end of the radiator portion, wherein a portion of the first radiator segment is in proximity with a portion of the second radiator segment such that the first and second radiator segments are electromagnetically coupled to one another.
摘要翻译：提供耦合的多段螺旋天线，其长度比传统的半波长天线可获得的长度短。耦合的多段螺旋天线包括散热器部分，其具有从散热器部分的一端延伸到散热器部分的另一端的多个螺旋缠绕的辐射器。每个散热器由两个或更多个部分组成。第一段从辐射器部分的第一端朝向散热器部分的第二端呈螺旋形延伸。第二段从辐射器部分的第二端朝向散热器部分的第一端以螺旋方式延伸，其中第一辐射器段的一部分与第二散热器段的一部分接近，使得第一和第二散热器段彼此电磁耦合。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式