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Computer Modelling of Compact 28/38 GHz Dual-Band Antenna for Millimeter-Wave 5G Applications

Computer Modeling in Engineering & Sciences 2023年第12期137卷 2867-2879页

作者： Amit V.Patel Arpan Desai Issa Elfergani Hiren Mewada Chemseddine Zebiri Keyur Mahant Jonathan Rodriguez Raed Abd-Alhameed Department of Electronics and Communication Engineering Chandubhai S Patel Institute of Technology(CSPIT)Charotar University of Science and Technology(CHARUSAT)Changa388421India The Instituto de Telecomunica珲es Campus Universitário de SantiagoAveiro3810-193Portugal School of Engineering and Informatics University of BradfordBradfordBD71DPUK Electrical Engineering Department Prince Mohammad Bin Fahd UniversityAl Khobar31952Saudi Arabia Department of Electronics Laboratoire d’Electronique de Puissance et Commande Industrielle(LEPCI)University of Ferhat AbbasSétif19000Algeria

A four-element compact dual-band patch antenna having a common ground plane operating at 28/38 GHz is proposed formillimeter-wave communication systems in this ***-input-multiple-output(MIMO)antenna geometry consists of a slotted ellipse enclosed within a hollow circle which is orthogonally rotated with a connected partial ground at the *** overall size of the four elements MIMO antenna is 2.24λ×2.24λ(at 27.12GHz).The prototype of four-element MIMOresonator is designed and printed using Rogers RTDuroid 5880 withε_(r)=2.2 and loss tangent=0.0009 and having a thickness of 0.8 *** covers dual-band having a fractional bandwidth of 15.7%(27.12-31.34 GHz)and 4.2%(37.21-38.81 GHz)for millimeter-wave applications with a gain of more than 4 dBi at both *** proposed antenna analysis in terms ofMIMOdiversity parameters(Envelope Correlation Coefficient(ECC)and diversity Gain(DG))is also carried *** experimental result in terms of reflection coefficient,radiation pattern,gain and MIMOdiversity parameter correlates very well with the simulated ones that show the potential of the proposed design for MIMO applications at millimeter-wave frequencies.

关键词： Connected ground diversity parameters dual-band antenna fifth generation(5G) mmwave multiple input multiple output(MIMO)

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Over-the-Air Performance Evaluation in Indoor and Outdoor Multipath Propagation Channels of Antenna diversity Systems inside Anechoic Chamber

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Wireless Engineering and Technology 2020年第4期11卷 31-43页

作者： Alaa Choumane Ahmad El Sayed Ahmad Khaled Khoder Alaa Saleh XLIM O.S.A. Department-UMR CNRS 6172 University of Limoges Limoges France Faculty of Public Health IV Lebanese University Zahle Lebanon Faculty of Sciences III Lebanese University Tripoli Lebanon Department of Innovation and Technology Azm Institute Tripoli Lebanon Faculty of Technology Lebanese University Saida Lebanon

With the ever-growing requirement for higher data rates, terminals supporting multiple-input multiple-output (MIMO) technologies are being developed for next-generation. As for wireless device manufacturers, a radio performance evaluation of multi-antenna terminals in desired environments is mandatory before product release. This paper discusses the Over the Air (OTA) performance evaluation of antenna diversity systems in Indoor and Outdoor multi-path propagation channel models inside anechoic chamber, in terms of correlation coefficients and diversity gain (DG). These channel models have been emulated in terms of angles of arrivals (AoA) and cross-polarization ratio (XPR) with Rayleigh fading. For this purpose, SATIMO SG24 measurement system has been used. However, the actual configuration of this system is not able to emulate desired realistic environments. Therefore, an innovative methodology based on the SG24 probes control has been developed. The obtained results in simulations and measurements have shown a good agreement.

关键词： OTA Testing diversity Measurements Indoor Outdoor MIMO diversity parameters

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