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A circularly polarized 2×2 rectifying antenna array with improved output voltage and efficiency for C-band wireless power transmission

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2 Author(s)
Yu-Jiun Ren ; Texas A&M Univ., College Station ; Kai Chang

The paper presented a circularly polarized 2times2 rectifying antenna array for C- band wireless power transmission. A new wideband antenna is designed as the receiving element with the second order harmonic-rejection. The C-band antenna has a bandwidth of 11% (5.75-6.4 GHz). The 2times2 rectifying antenna array, built by using the wideband antennas, has a conversion efficiency of 77% while its output voltage is 4.6 V, which are better than the previous work. Due to the simple array structures, the rectenna array can be easily used to assemble a large array for higher output power.

Published in:

Antennas and Propagation Society International Symposium, 2007 IEEE

Date of Conference:

9-15 June 2007