Abd Rahman Nur Akmal, Mohd Yasin Mohd Najib, Ibrahim Imran Mohd, Jusoh Muzammil, Noor Shehab Khan, Ekscalin Emalda Mary Mervin Retnadhas, Zamin Norshuhani, Nurhayati Nurhayati
Advanced Communication Engineering (ACE) Centre of Excellence, Faculty Electronic Engineering Technology, Universiti Malaysia Perlis (UniMAP), Kangar 01000, Perlis, Malaysia.
Centre for Telecommunication Research and Innovation (CeTRI), Faculty of Electronic and Computer Engineering, Universiti Teknikal Malaysia Melaka (UTeM), Durian Tunggal 76100, Melaka, Malaysia.
Micromachines (Basel). 2022 Dec 8;13(12):2178. doi: 10.3390/mi13122178.
A comprehensive review on recent developments and applications of circularly polarized (CP) dielectric resonator antennas (DRAs) is proposed in this paper. DRAs have received more considerations in various applications due to their advantages such as wide bandwidth, high gain, high efficiency, low losses, and low profile. A broad justification for circular polarization and DRAs is stated at the beginning of the review. Various techniques such as single feed, dual, or multiple feeds used by different researchers for generating circular polarization in DRAs are briefly studied in this paper. Multiple-input-multiple-output (MIMO) CP DRAs, which can increase channel capacity, link reliability, and data rate, have also been analyzed. Additionally, innovative design solutions for broadening the circular polarization bandwidth and reducing mutual coupling are studied. Several applications of DRA are also discussed comprehensively. This paper finishes with concluding remarks.
本文对圆极化（CP）介质谐振器天线（DRA）的最新进展和应用进行了全面综述。由于DRA具有带宽宽、增益高、效率高、损耗低和外形低等优点，因此在各种应用中受到了更多关注。在综述开始时阐述了圆极化和DRA的广泛合理性。本文简要研究了不同研究人员用于在DRA中产生圆极化的各种技术，如单馈、双馈或多馈。还分析了能够增加信道容量、链路可靠性和数据速率的多输入多输出（MIMO）CP DRA。此外，还研究了用于拓宽圆极化带宽和降低互耦的创新设计解决方案。还全面讨论了DRA的几种应用。本文最后给出了结论。
