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

US06333719B1 Tunable electromagnetic coupled antenna 有权
标题翻译：可调电磁耦合天线
公开(公告)号：US06333719B1
公开(公告)日：2001-12-25
申请号：US09595987
申请日：2000-06-16
申请人： Vijay K. Varadan , Peng Thian Teo
发明人： Vijay K. Varadan , Peng Thian Teo
IPC分类号： H01Q100
CPC分类号： H01Q9/0414 , H01Q1/364 , H01Q1/38 , H01Q3/44 , H01Q9/0407 , H01Q9/0442 , H01Q9/14 , H01Q15/02 , H01Q21/30
摘要： A multilayer tunable ferroelectric antenna assembly which includes a first laminar structure that includes a tunable ferroelectric substrate positioned on top of a conducting ground plane and a copper radiating sheet on the other side of the substrate. A second laminar structure includes a single-sided copper cladded high dielectric substrate with the copper sheet acting as the radiator. The passive second laminar structure is electromagnetically coupled to the first laminar structure via an air-gap spacing. Application of a bias voltage across the first laminar structure changes the dielectric permittivity and, hence, the resonating frequency of the antenna structure.
摘要翻译：一种多层可调谐铁电天线组件，其包括第一层状结构，该第一层状结构包括位于导电接地平面顶部的可调铁电基底和位于基底另一侧的铜辐射片。第二层状结构包括具有作为散热器的铜片的单面铜包覆高介电基板。被动第二层状结构通过气隙间隔与第一层状结构电磁耦合。跨越第一层状结构的偏置电压的施加改变了介电常数，并因此改变了天线结构的谐振频率。

2. 发明授权

US06329959B1 Tunable dual-band ferroelectric antenna 有权
标题翻译：可调式双频铁电天线
公开(公告)号：US06329959B1
公开(公告)日：2001-12-11
申请号：US09595933
申请日：2000-06-16
申请人： Vijay K. Varadan , Peng Thian Teo
发明人： Vijay K. Varadan , Peng Thian Teo
IPC分类号： H01Q100
CPC分类号： H01Q9/0414 , H01Q1/364 , H01Q1/38 , H01Q3/44 , H01Q9/0407 , H01Q9/0442 , H01Q9/14 , H01Q15/02 , H01Q21/30
摘要： A multilayer tunable ferroelectric antenna assembly that includes two superimposed substrate layers. A first substrate layer consists of a low dielectric material carrying on one face an electrically ground plane, and on its opposite face an electrically conductive patch serving as an active feeder-resonator. A second substrate includes a ferroelectric material having one face positioned on top of the feeder-resonator and carrying on the opposite face an electrically conductive patch acting as a director. The upper director patch is fed through capacitve coupling of energy from the feeder-resonator. Application of bias voltage between the director and the feeder-resonator changes the permittivity of the ferroelectric substrate, thereby causing a shift in resonance frequency. A radiation null, corresponding to energy absorption, could be tuned into the resonance frequency at which the antenna is previously exhibiting a radiation characteristic. This provides the antenna a means to behave either as a radiator or an absorber at particular frequency.
摘要翻译：包括两个叠加的基底层的多层可调谐铁电天线组件。第一衬底层由承载在一个面上的电介质层的低电介质材料构成，并且在其相对面上由用作有源馈电共振器的导电贴片组成。第二基板包括铁电材料，铁电材料具有位于馈送共振器顶部的一个面，并且在相对面上承载用作导向器的导电贴片。上导向器贴片通过来自馈线共振器的能量的电容耦合馈送。导向器和馈电共振器之间的偏置电压的应用改变了铁电衬底的介电常数，从而引起谐振频率的偏移。对应于能量吸收的辐射零点可以调谐到天线先前呈现辐射特性的谐振频率。这为天线提供了以特定频率作为散热器或吸收器的手段。

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