| Liu Demeng (刘德盟)* **,Mei Niansong*,Zhang Zhaofeng*.[J].高技术通讯(英文),2015,21(2):212~218 |
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| RF energy harvesting system for wireless intraocular pressure monitoring |
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| DOI：10.3772/j.issn.1006-6748.2015.02.014 |
| 中文关键词: |
| 英文关键词: RF energy harvesting system, implantable medical system, antenna, rectifier, intraocular pressure monitoring |
| 基金项目: |
| Author Name | Affiliation | | Liu Demeng (刘德盟)* ** | | | Mei Niansong* | | | Zhang Zhaofeng* | |
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| 中文摘要: |
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| 英文摘要: |
| This paper presents an RF energy harvesting system for wireless intraocular pressure monitoring applications. The system consists of an implantable antenna and a rectifier. A new sizing strategy is adopted to optimize the conversion efficiency of the rectifier, and the design principle of an implantable antenna is introduced from material selection and structure design. Results from testing demonstrate that the antenna gain is about -20 dBi and the rectifier’s maximum total conversion efficiency which contains match efficiency and rectifying efficiency is 47.18% under the implementation of 0.18μm standard CMOS process. The maximum power obtained from the proposed system is 8μW when the power density of electromagnetic wave is lower than the national standard 40μW/cm2 at 915MHz, which is enough to power the intraocular pressure monitoring system. |
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