| 发明名称 |
Antenna for an RFID tag reader |
| 摘要 |
Some embodiments are directed to an antenna for use in interrogating RFID tags in close proximity thereto. The antenna can include an active element configured to resonate at or close to a frequency required to read an RFID tag, the active element comprising a feed point; and a plurality of passive elements, each passive element being configured to resonate at or around a frequency corresponding to said frequency, the passive elements being arranged around the active element such that the passive elements electromagnetically couple to the active element when the active element is driven by a signal supplied through the feed point. |
| 申请公布号 |
US2015102977(A1) |
申请公布日期 |
2015.04.16 |
| 申请号 |
US201314397001 |
申请日期 |
2013.04.29 |
| 申请人 |
QINETIQ LIMIED |
发明人 |
Lockyear Matthew J.;Hooper Ian Richard;Biginton Matthew;Treen Andrew Shaun |
| 分类号 |
H01Q1/22;H01Q19/00 |
主分类号 |
H01Q1/22 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An antenna for use in interrogating RFID tags in close proximity thereto, the antenna comprising:
an active element configured to resonate at or close to a frequency required to read an RFID tag, the active element comprising a feed point; and a plurality of passive elements, each passive element being configured to resonate at or around a frequency corresponding to said frequency, the passive elements being arranged around the active element such that the passive elements electromagnetically couple to the active element when the active element is driven by a signal supplied through the feed point. |
| 地址 |
Hampshire GB |
