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A ground slot for harmonic suppression
Description
In ultra low power RF energy harvesting circuits, it is required that incident power is handled efficiently. One such requirement is to avoid re-radiation of higher order harmonics generated in the single or two diode rectenna. In this paper, a ground slot is proposed to eliminate the higher order harmonic resonance, while ensuring a fixed fundamental resonance at 2.1 GHz, and circular polarization at 3 dBi gain in the broadside. The proposed antenna is suitable for cellular energy harvesting in the W-CDMA down link band (2110 – 2170 MHz).
Journal
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- 2012 15 International Symposium on Antenna Technology and Applied Electromagnetics
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2012 15 International Symposium on Antenna Technology and Applied Electromagnetics 1-4, 2012-06-01
IEEE