Abstract
A novel wideband circularly polarized antenna array using sequential rotation feeding network is presented in this paper. The proposed antenna array has a relative bandwidth of 38.7% at frequencies from 5.05 GHz to 7.45 GHz with a highest gain of 12 dBi at 6 GHz. A corresponding left-handed metamaterial is designed in order to increase antenna gain without significantly affecting its polarization characteristics. The wideband circularly polarized antenna with 2.4 GHz of bandwidth is a promising solution for wireless communication system such as tracking or wireless energy harvesting from Wi-Fi signal based on IEEE 802.11ac standard or future 5G cellular. A potential application of this antenna as a receiving antenna for RF-DC device to obtain DC power for a wireless sensor node from Wi-Fi signal is shown.
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CITATION STYLE
Nguyen, N. H., Bui, T. D., Le, A. D., Pham, A. D., Nguyen, T. T., Nguyen, Q. C., & Le, M. T. (2018). A novel wideband circularly polarized antenna for RF energy harvesting in wireless sensor nodes. International Journal of Antennas and Propagation, 2018. https://doi.org/10.1155/2018/1692018
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