发明名称 |
SWITCHABLE RADIATION ENHANCEMENT AND DECOUPLING |
摘要 |
<p>A device capable of enhancing an electric field to drive an electromagnetic tag into operation is switchable between states to control operation of the tag. Enhancement is provided by a dielectric cavity structure defined between first and second conducting layers. Different states of the device may have different resonant frequencies and read ranges according to the characteristics of the enhancement. As such a container can be provided which includes a tag which switches states on opening, allowing improved tracking characteristics.</p> |
申请公布号 |
EP2122750(A2) |
申请公布日期 |
2009.11.25 |
申请号 |
EP20070848522 |
申请日期 |
2007.12.13 |
申请人 |
OMNI-ID LIMITED |
发明人 |
JOHNSON, DANIEL ROBERT;CLARKE, PAUL RICHARD;LAWRENCE, CHRISTOPHER ROBERT;BROWN, JAMES ROBERT;DAMERELL, WILLIAM NORMAN;DUNCOMBE, RICHARD JAMES |
分类号 |
H01Q1/22;G06K19/077;H01P7/06;H01Q5/10 |
主分类号 |
H01Q1/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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