具有简单馈电网络和高增益性能的四端口介质谐振器天线

IF 4 3区 计算机科学 Q1 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE
Asmaa I. Afifi , Anwer S. Abd El-Hameed , Ahmed Allam , Sabah M. Ahmed , Adel B. Abdel-Rahman
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引用次数: 0

摘要

本文介绍了一种用于 X 波段应用的四端口多输入多输出(MIMO)单圆柱介质谐振器天线(CDRA)。这种方法主要是为每个端口选择适当的馈电结构,并植入垂直金属通孔(VMV),以减小宽频带内的相互耦合。两个正交孔径和两个垂直探针被用作馈电结构,以实现所有端口组合之间的良好隔离。端口 1 和端口 2 之间的耦合是由于这两个端口的受激模式场分布造成的,为了减轻耦合,在这两个端口之间的适当位置插入了四个 VMV,以在宽带宽上产生场正交。拟议 CDRA 内部的激发模式为 HE52δ+2x、HE52δ+2y、HE32δ + 2 和 TM12δ + 2。在 8.2 至 8.54 GHz 的 340 MHz(4%)重叠频段内,隔离度优于-15 dB。此外,拟议的 DRA 在 8.45 GHz 频段为四个端口分别提供了 5.17、7.21、7.77 和 7.78 dBi 的增益,所有端口在整个工作频段的总效率为 65% 至 85%。拟议设计的多输入多输出性能显示,所有端口在整个频段内都具有良好的包络相关系数(ECC)、分集增益(DG)、总有源反射系数(TARC)、信道容量损耗(CCL)和平均有效增益(MEG)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Quad ports dielectric resonator antenna with simple feed network and high gain performance
This paper presents a quad-port multiple-input multiple-output (MIMO) single cylindrical dielectric resonator antenna (CDRA) for X-band applications. This approach is mainly based on selecting the proper feeding structure for each port as well as implanting vertical metallic vias (VMVs) to diminish the mutual coupling over a wide bandwidth. Two orthogonal apertures and two vertical probes are utilized as feeding structures to realize good isolation between all port combinations. For coupling mitigation between port1 and port2 that is due to the field distribution of the excited modes at these ports, four VMVs are inserted between them in appropriate positions to produce field orthogonality along wide bandwidth. The excited modes inside the proposed CDRA are HE52δ+2x,HE52δ+2y, HE32δ + 2, and TM12δ + 2. Isolation better than -15 dB is attained across the overlapping band of 340 MHz (4 %); from 8.2 to 8.54 GHz. Moreover, the proposed DRA provides a gain of 5.17, 7.21, 7.77, and 7.78 dBi for the four ports at 8.45 GHz and the total efficiencies at all ports are from 65 to 85 % across the operating band. The MIMO performance of the proposed design shows a good envelope correlation coefficient (ECC), diversity gain (DG), total active reflection coefficient (TARC), channel capacity loss (CCL) and mean effective gain (MEG) through the whole band for all ports.
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来源期刊
Computers & Electrical Engineering
Computers & Electrical Engineering 工程技术-工程:电子与电气
CiteScore
9.20
自引率
7.00%
发文量
661
审稿时长
47 days
期刊介绍: The impact of computers has nowhere been more revolutionary than in electrical engineering. The design, analysis, and operation of electrical and electronic systems are now dominated by computers, a transformation that has been motivated by the natural ease of interface between computers and electrical systems, and the promise of spectacular improvements in speed and efficiency. Published since 1973, Computers & Electrical Engineering provides rapid publication of topical research into the integration of computer technology and computational techniques with electrical and electronic systems. The journal publishes papers featuring novel implementations of computers and computational techniques in areas like signal and image processing, high-performance computing, parallel processing, and communications. Special attention will be paid to papers describing innovative architectures, algorithms, and software tools.
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