Efficient Dual Band RF Energy Harvesting Front End for Ultra Low Power Sensitive Passive Wearable Devices

被引：2
|
作者：
Kaddi, Pramod [1 ]
Vamsi, Nagaveni [1 ]
Appala, Anil [1 ]
Dutta, Asudeb [1 ]
Singh, Shiv Govind [1 ]
Nallam, Nagarjuna [2 ]
机构：
[1] IIT Hyderabad, Dept Elect Engn, Hyderabad, Andhra Pradesh, India
[2] IIT Guwahati, Gauhati, Assam, India
来源：
2014 FIFTH INTERNATIONAL SYMPOSIUM ON ELECTRONIC SYSTEM DESIGN (ISED) | 2014年
关键词：
Power Conversion Efficiency (PCE); Ultra High Frequency(UHF); Radio Frequency Identification (RFID); Band Gap Reference (BGR); Low Drop Out Regulator (LDO); Power On Reset (POR); Effective Isotropic Radiated Power(EIRP);
D O I：
10.1109/ISED.2014.25
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper demonstrates a double-band RF energy harvesting system, to be used with a passive wearable device operating at a distance of 6-20 m from a wireless power source. The double-band RF energy harvesting circuit that is presented in this paper, can harvest an input power as low as -14 dBm from both 925 MHz and 2.4 GHz, ISM frequencies. The harvesting circuit is implemented in a standard 0.18 mu m CMOS technology and gives a regulated output voltage of 1.1 V. Post-layout simulations show an overall system efficiency of 41.87% and 46.95% at 953 MHz and 2.4 GHz respectively, while driving a load resistance of 60 k Omega.
引用
收藏
页码：84 / +
页数：6
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