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Sensors 2016, 16(9), 1349; doi:10.3390/s16091349

A Wideband Circularly Polarized Pixelated Dielectric Resonator Antenna

School of Electronic and Electrical Engineering, Sungkyunkwan University, Suwon 440-746, Korea
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Academic Editor: Stephane Evoy
Received: 3 June 2016 / Revised: 15 August 2016 / Accepted: 18 August 2016 / Published: 23 August 2016
(This article belongs to the Special Issue Resonator Sensors)
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Abstract

The design of a wideband circularly polarized pixelated dielectric resonator antenna using a real-coded genetic algorithm (GA) is presented for far-field wireless power transfer applications. The antenna consists of a dielectric resonator (DR) which is discretized into 8 × 8 grid DR bars. The real-coded GA is utilized to estimate the optimal heights of the 64 DR bars to realize circular polarization. The proposed antenna is excited by a narrow rectangular slot etched on the ground plane. A prototype of the proposed antenna is fabricated and tested. The measured −10 dB reflection and 3 dB axial ratio bandwidths are 32.32% (2.62–3.63 GHz) and 14.63% (2.85–3.30 GHz), respectively. A measured peak gain of 6.13 dBic is achieved at 3.2 GHz. View Full-Text
Keywords: aperture-coupled feeding; circular polarization; pixelated dielectric resonator antenna; wide bandwidth aperture-coupled feeding; circular polarization; pixelated dielectric resonator antenna; wide bandwidth
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MDPI and ACS Style

Trinh-Van, S.; Yang, Y.; Lee, K.-Y.; Hwang, K.C. A Wideband Circularly Polarized Pixelated Dielectric Resonator Antenna. Sensors 2016, 16, 1349.

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