A Planar Microwave Cavity Loaded with Ferrromagnetic Material: a new 8.2 MHz Anti-Theft Tag for Metallic Packaging within the Retail Sector

装有铁磁材料的平面微波腔：零售行业金属包装的新型 8.2 MHz 防盗标签

• 批准号: EP/I500219/1
• 负责人: Robert Hicken
• 金额: $ 12.76万
• 依托单位: UNIVERSITY OF EXETER
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2010
• 资助国家: 英国
• 起止时间: 2010 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FI500219%2F1
• 关键词: Planar; Microwave; Cavity; Loaded; Ferrromagnetic

We propose to develop a new type of anti-theft tag based upon a planar microwave cavity loaded with ferromagnetic material. Many retail outlets currently use a system of tagging and detection developed by Checkpoint Systems Inc. for the protection of merchandise. The conventional planar tag is activated by an 8.2 MHz frequency alternating magnetic field applied perpendicular to its plane, rendering it ineffective on metallic surfaces due to eddy current shielding. The new tag is instead activated by an in-plane magnetic field. It will safeguard an important business sector for Crown Packaging UK, a leading manufacturer of metal packaging.

我们提出了一种基于加载铁磁材料的平面微波腔的新型防盗标签。许多零售店目前使用由Checkpoint Systems Inc.开发的标签和检测系统来保护商品。传统的平面标签是由垂直于其平面的8.2 MHz频率交变磁场激活的，这使得其在金属表面上由于涡流屏蔽而无效。取而代之的是，新标签由面内磁场激活。它将保护英国皇冠包装公司的一个重要业务部门，该公司是一家领先的金属包装制造商。

项目成果

Ferrite-filled cavities for compact planar resonators

用于紧凑型平面谐振器的铁氧体填充腔

• DOI: 10.1063/1.4861844
• 发表时间: 2014
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: Keatley P

A Ferrite-Filled Cavity Resonator for Electronic Article Surveillance on Metallic Packaging

用于金属包装电子物品监控的铁氧体填充腔谐振器

• DOI: 10.1109/tmag.2019.2944589
• 发表时间: 2019
• 期刊: IEEE Transactions on Magnetics
• 影响因子: 2.1
• 作者: Keatley P

Heavily loaded ferrite-polymer composites to produce high refractive index materials at centimetre wavelengths

高负载铁氧体聚合物复合材料可生产厘米波长的高折射率材料

• DOI: 10.1063/1.4824039
• 发表时间: 2013
• 期刊: APL Materials
• 影响因子: 6.1
• 作者: Parke L