Author
Munir, Syeda Wajiha, Amjad, Osama, Zeydan, E., Ercan, Ali Özer
Publication Date
2016
Publication Place
-
IEEE
Subject
RF energy harvesting, Microstrip patch antenna, Dual-band, Schottky diode and WLAN source
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
978-1-5090-2061-4
Record ID
1e01d8df-47ff-4670-8da0-e0660b25415a
Library Location
Electrical & Electronics Engineering
Date
2016
Notes
TUBITAK
Sample Text
This paper presents the design, analysis and optimization of RF energy harvesting system for WLAN source operating at 2.4 GHz and 5.8 GHz. The system architecture comprises of RF WLAN source, wireless channel, an efficient dual band microstrip patch antenna, an impedance matching network, 4-stage voltage rectifier and a storing circuit. Matching network ensures the maximum power transfer from source to load. HSMS-2850 Schottky diodes are used in rectifier design, which provide low forward voltage and low substrate leakage. The proposed system design is used to analyze the effect of distance on RF power obtained at receiving side. The size of storage capacitor is chosen carefully such that it can store sufficient amount of charge and takes reasonable charging time. Moreover, the circuit parameters are varied to optimize the designed circuit that provides the maximum efficiency of 45% and 22% at 2.4 GHz and 5.8 GHz respectively, at a distance of 1 meter from source. Simulated results show that for received RF power of 5 dBm the system can provide 1.3 mW power across 10 kΩ load, which can be enough to energize the low power devices. The voltage supplied by the harvesting system can be increased further by increasing the number of stages in voltage rectifier according to the application but at the cost of parasitic loss.
DOI
10.1109/ISWCS.2016.7600942
