A Wireless Power Transmitter with Uniform Power Transfer Coverage
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
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Pages (from-to) | 10709-10717 |
Journal / Publication | IEEE Transactions on Industrial Electronics |
Volume | 68 |
Issue number | 11 |
Online published | 19 Nov 2020 |
Publication status | Published - Nov 2021 |
Link(s)
Abstract
To avoid the performance deterioration caused by the changing placement angle of a receiving antenna, a wireless power transmitter with uniform power transfer coverage is preferred. The utilization of a transmitting antenna with flat-top radiation pattern is the most effective approach. However, the existing antenna configurations usually have complex structures and bulky sizes. To mitigate these problems, a rectangular dielectric resonator antenna (DRA) is proposed to obtain flat-top radiation patterns for the first time. Flat-top patterns are realized in both the E- and H-planes by combining the TEy119 and TEy133 modes of a rectangular DRA. For validation, both linearly polarized (LP) and circularly polarized (CP) flat-topped DRAs operating at 5.2 GHz were designed, fabricated, and tested. Reasonable agreement between the measured and simulated results is observed. For the LP design, stable flat-top patterns can be maintained from 5.18 GHz to 5.24 GHz. Across the operating frequency band, the measured 3-dB beamwidths are 86° and 58° in the E- and H-planes, respectively, with the side lobe levels lower than -13.9 dB. For the CP design, similar characteristics can be found. To demonstrate the effectiveness of the proposed antenna, the LP design was used to construct a wireless power transmitter, which provides more uniform power coverage within the desired angular sector.
Research Area(s)
- dielectric resonator antenna, flat-top radiation pattern, higher-order modes, uniform power transfer coverage, Wireless power transfer
Citation Format(s)
A Wireless Power Transmitter with Uniform Power Transfer Coverage. / Wang, Chuang Kai; Xiang, Bing Jie; Zheng, Shao Yong et al.
In: IEEE Transactions on Industrial Electronics, Vol. 68, No. 11, 11.2021, p. 10709-10717.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review