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J. Electromagn. Eng. Sci > Volume 11(4); 2011 > Article
Journal of the Korean Institute of Electromagnetic and Science 2011;11(4):257-261.
DOI: https://doi.org/10.5515/JKIEES.2011.11.4.257   
A Highly Efficient Rectenna Using Harmonic Rejection Capability
Youg-Hwan Kim, Sung-Joon Lim
Electrical and Electronics Engineering, Chung-Ang University
A highly efficient 2.4 GHz rectenna is designed using a harmonic rejection bandpass filter. The rectenna is printed on Rogers Duroid 5880 substrate with ${varepsilon}_r$=2.2 and a thickness of 1.6 mm. The rectenna consists of a microstrip antenna and high order harmonic rejection bandpass filter, microstrip lowpass filter, and Schottky barrier diode (HSMS2820). The use of a $2^{nd}$ and $3^{rd}$ harmonic rejection microstrip bandpass filter in the rectenna results in high conversion efficiency. The proposed rectenna achieves a RF to DC conversion efficiency of 72.17 % when the received RF power is 63.09 mW.
Key words: Rectenna, Microstrip Antenna, Micro-Strip Bandpass Filter, Harmonic Rejection, Microstrip Lowpass
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