title: A Wideband Circularly Polarized Pixelated Dielectric Resonator Antenna.
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.
authors: School of Electronic and Electrical Engineering, Sungkyunkwan University, Suwon 440-746, Korea. jsonbkhn@gmail.com.
authors: Son
authors: S
authors: Trinh-Van
authors: School of Electronic and Electrical Engineering, Sungkyunkwan University, Suwon 440-746, Korea. yang09@skku.edu.
authors: Youngoo
authors: Y
authors: Yang
authors: School of Electronic and Electrical Engineering, Sungkyunkwan University, Suwon 440-746, Korea. klee@skku.edu.
authors: Kang-Yoon
authors: KY
authors: Lee
authors: School of Electronic and Electrical Engineering, Sungkyunkwan University, Suwon 440-746, Korea. khwang@skku.edu.
authors: Keum Cheol
authors: KC
authors: Hwang
keywords: aperture-coupled feeding; circular polarization; pixelated dielectric resonator antenna; wide bandwidth