A Wideband Fractal Antenna and Comparison of RF Rectifiers for Electromagnetic Energy Harvesting

Date

2017-11-30

Author

Ozdemir, Huriye
Nesimoglu, Tayfun

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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This paper presents a wideband fractal antenna and compares two efficient rectifier topologies suitable for 2.45 GHz band. The combined fractal antenna and the rectifiers may be used for ambient RF energy harvesting from wireless LAN/Wi-Ei. The proposed fractal antenna covers the most frequently encountered frequency bands which are located around 1800 MHz, 2.1 GHz, 2.4 GHz and 2.45 GHz corresponding to standards like GSM/DCS, UMTS, ISM and WLAN respectively. The return loss of the proposed antenna is below -10 dB and its gain is 4 dBi between 2.40-2.47 GHz. Two different Greinacher voltage tripler rectifier circuits were designed to compare the RF to DC conversion efficiency and power handling capability of the rectifying circuit structures. Up to 60% power efficiency was achieved with the proposed rectifiers at 2.45 GHz.

Subject Keywords

RF energy harvesting, Fractal antenna, Greinacher voltage, Tripler rectifier circuit

URI

https://hdl.handle.net/11511/65312

Conference Name

Mediterranean Microwave Symposium (MMS)

Collections

Engineering, Conference / Seminar

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Citation Formats

H. Ozdemir and T. Nesimoglu, “A Wideband Fractal Antenna and Comparison of RF Rectifiers for Electromagnetic Energy Harvesting,” Marseille, France, 2017, p. 0, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65312.