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논문 기본 정보

자료유형
학술저널
저자정보
Chang-Jun Ahn (Chiba University) Takeshi Kamio (Hiroshima City University) Hisato Fujisaka (Hiroshima City University) Kazuhisa Haeiwa (Hiroshima City University)
저널정보
대한전자공학회 IEIE Transactions on Smart Processing & Computing IEIE Transactions on Smart Processing & Computing Vol.3 No.4
발행연도
2014.8
수록면
221 - 225 (5page)

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초록· 키워드

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Low power RF devices, such as RFID and Zigbee, are important for ubiquitous sensing. These devices, however, are powered by portable energy sources, such as batteries, which limits their use. To mitigate this problem, this study developed RF energy harvesting with W-CDMA for a low power RF device. Diodes are required with a low turn on voltage because the diode threshold is larger than the received peak voltage of the rectifying antenna (rectenna). Therefore, a Schottky diode HSMS-286 was used. A prototype of RF energy harvesting device showed the maximum gain of 5.8dBi for the W-CDMA signal. The 16 patch antennas were manufactured with a 10 dielectric constant PTFT board. In low power RF devices, the transmitter requires a step-up voltage of 2.5~5V with up to 35 mA. To meet this requirement, the Texas Instruments TPS61220 was used as a low input voltage step-up converter. From the evaluated result, the achievable incident power of the rectenna at 926mV to operate Zigbee can be obtained within a distance of 12m.

목차

Abstract
1. Introduction
2. RF Energy Harvesting Devices
3. Experimental Results
5. Conclusion
References

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