A Compact Wideband Circularly Polarized High Isolation X-Band MIMO Dielectric Resonator Antenna

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Microwave and Optical Technology Letters Pub Date : 2025-06-16 DOI:10.1002/mop.70275

Ankita H. Harkare, Mahesh P. Abegaonkar

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Abstract

This study paper presents a compact MIMO Dielectric Resonator Antenna designed for X-band communication. The antenna operates in the 8–15 GHz frequency range and exhibits circular polarization with a wideband characteristics. High isolation, below −20 dB, is achieved across the entire band by introducing a ground plane defect. The novel DRA consists of two stacked layers separated by an air gap to improve bandwidth. Circular polarization is achieved by feeding the dielectric resonators (DR) with orthogonal microstrip lines. This study explores the innovative integration of perforations into dielectric resonator antennas for MIMO applications. By investigating the effects of perforations on radiation characteristics and isolation properties, we aim to contribute to developing efficient and high-performance MIMO antenna systems, which are pivotal for meeting the ever-increasing demands of modern wireless communication technologies. Performance evaluation reveals a 72% complete overlap of 10 dB impedance bandwidth and 3 dB AR bandwidth. The proposed compact MIMO DRA offers the advantage of high isolation below −20 dB, a wide bandwidth of 72%, and circular polarization for X-band communication applications with complete overlap of 72%.

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一种紧凑型宽带圆极化高隔离x波段MIMO介质谐振器天线

本文设计了一种用于x波段通信的小型MIMO介质谐振器天线。该天线工作在8 - 15ghz频率范围内，具有宽带特性的圆极化。通过引入地平面缺陷，在整个频带内实现了低于−20 dB的高隔离。新型的DRA由两个堆叠层组成，通过气隙分隔以提高带宽。用正交微带线馈送介质谐振器实现圆极化。本研究探索了用于MIMO应用的介电谐振器天线穿孔的创新集成。通过研究射孔对辐射特性和隔离特性的影响，我们的目标是为开发高效高性能的MIMO天线系统做出贡献，这对于满足现代无线通信技术日益增长的需求至关重要。性能评估显示，10db阻抗带宽和3db AR带宽有72%的完全重叠。所提出的紧凑型MIMO DRA具有- 20 dB以下的高隔离性，72%的宽带宽，以及72%完全重叠的x波段通信应用的圆极化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication