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Multiple input multiple output (MIMO) and fifth generation (5G): an indispensable technology for sub-6 GHz and millimeter wave future generation mobile terminal applications

Published online by Cambridge University Press:  28 July 2021

Insha Ishteyaq Open the ORCID record for Insha Ishteyaq [Opens in a new window]  and
Khalid Muzaffar
Insha Ishteyaq*
Affiliation:
Department of Electronics and Communication Engineering, Islamic University of Science and Technology, Awantipur, Jammu and Kashmir-192122, India
Khalid Muzaffar
Affiliation:
Department of Electronics and Communication Engineering, Islamic University of Science and Technology, Awantipur, Jammu and Kashmir-192122, India
*
Author for correspondence: Insha Ishteyaq, E-mail: insha.ishteyaq@islamicuniversity.edu.in
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Abstract

The in-depth exploration in the future 5G technology symbolizes a revolution in technology for antenna designers to encounter the all time increasing need as well as demand for higher data rate wireless communications. The paper gives out an exhaustive review of the evolution and characteristics of the 5G spectrum allocations, the MIMO antenna design with regard to mutual coupling reduction techniques and safer user applications. It precisely covers almost all the aspects of 5G which mainly include the types of antenna designs and their performance parameters related to MIMO design. The paper also presents a brief description of massive MIMO technology for base station applications. The main aim of the paper is: (1) to emphasize the frequencies allocated for the 5G including sub-6 Ghz and mm-wave bands; (2) to underline the suitable antenna designs for MIMO applications for mobile devices and base stations; (3) to highlight the mutual coupling effects in MIMO designs and its reduction techniques; (4) to consider the gaps in the literature and the challenges for reducing SAR effects for the safety of the users. This review paper has been an attempt to explore the evolution of 5G bands and antenna designs for 5G applications, comparison based on the literature, and the techniques implemented for enhancing the MIMO antenna performances.

Keywords

Electromagnetic effectsmassive MIMOmobile antenna designsmultiple input multiple output antennasspecific absorption rates

Information

Type
Antenna Design, Modelling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 14 , Issue 7 , September 2022 , pp. 932 - 948
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Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press in association with the European Microwave Association

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References

Chih-Lin, I, Rowell, C, Han, S, Xu, Z, Li, G and Pan, Z (2014) Toward green and soft: a 5g perspective. IEEE Communications Magazine 52, 66–73.Google Scholar
Wang, T, Li, G, Ding, J, Miao, Q, Li, J and Wang, Y (2015) 5g spectrum: is china ready? IEEE Communications Magazine 53, 58–65.CrossRefGoogle Scholar
Huang, HC (2018) Overview of antenna designs and considerations in 5g cellular phones. 03. pp. 1–4.CrossRefGoogle Scholar
Hong, W, Jiang, Z, Yu, C, Zhou, J, Chen, P, Yu, Z, Zhang, H, Yang, B, Pang, X, Jiang, M, Cheng, Y, Al-Nuaimi, MKT, Zhang, Y, Chen, J and He, S (2017) Multi-beam antenna technologies for 5g wireless communications. IEEE Transactions on Antennas and Propagation 65, 1–1.CrossRefGoogle Scholar
Series, M (2009) Guidelines for evaluation of radio interface technologies for IMT-Advanced. Report ITU 638, 1–72.Google Scholar
Mitra, RN and Agrawal, DP (2015) 5g mobile technology: a survey. ICT Express 1, 132–137.CrossRefGoogle Scholar
Khan, R, Al-Hadi, AA, Soh, PJ, Kamarudin, MR, Ali, MT, and Owais, (2018) User influence on mobile terminal antennas: a review of challenges and potential solution for 5g antennas. IEEE Access 6, 77695–77715.CrossRefGoogle Scholar
Zhang, S, Zhao, K, Ying, Z and He, S (2013) Body-effect-adaptive compact wideband lte mimo antenna array with quad elements for mobile terminals. In PIERS Proceedings, pp. 1858–1861.Google Scholar
Zhang, S and Ying, Z (2016) Mimo antennas for mobile terminals. Proceedings FERMAT. pp. 725–727.Google Scholar
Busari, SA, Huq, KMS, Mumtaz, S, Dai, L and Rodriguez, J (2017) IEEE Communications Surveys & Tutorials 20, 836.CrossRefGoogle Scholar
Papadopoulos, H, Wang, C, Bursalioglu, O, Hou, X and Kishiyama, Y (2016) Massive mimo technologies and challenges towards 5g. IEICE Transactions on Communications E99.B. 602–621.CrossRefGoogle Scholar
Wu, J (2018) Research on massive mimo key technology in 5g. MS&E 466, 012083.Google Scholar
Vannithamby, R and Talwar, S (eds) (2017) Towards 5g: Applications, Requirements and Candidate Technologies, John Wiley & Sons. Mobile and wireless communications.Google Scholar
Albreem, MA, Juntti, M and Shahabuddin, S (2019) Massive mimo detection techniques: a survey. IEEE Communications Surveys & Tutorials 21, 3109–3132.CrossRefGoogle Scholar
Wang, X, Kong, L, Kong, F, Qiu, F, Xia, M, Arnon, S and Chen, G (2018) Millimeter wave communication: a comprehensive survey. IEEE Communications Surveys & Tutorials 20, 1616–1653.CrossRefGoogle Scholar
Das, A and Kolangiammal, S (2017) Performance analysis of millimeter wave communication system using 256-qam and 512-qam techniques. 2017 International Conference on Communication and Signal Processing (ICCSP); IEEE. pp. 0360–0364.CrossRefGoogle Scholar
Schnaufer, D and Peterson, B (2018) Realizing 5g sub-6-ghz massive mimo using gan. Microw RF.Google Scholar
Al-Tarifi, MA (2018) Massive mimo antenna system for 5g base stations with directive ports and switched beamsteering capabilities. IET Microwaves, Antennas & Propagation 12, 1709–1718.CrossRefGoogle Scholar
Wang, J, Zhao, L, Hao, Z, and Jin, J (2017) A wideband dual-polarized omnidirectional antenna for base station/wlan. IEEE Transactions on Antennas and Propagation 66, 1–1.Google Scholar
Esmail, B, Majid, H, Dahlan, S, Zainalabidin, Z, Himdi, M, Dewan, R, Rahim, MKA and Ashyap, AYI (2020) Reconfigurable metamaterial structure for 5g beam tilting antenna applications. Waves in Random and Complex Media, 1–14.Google Scholar
Hussain, S, Qu, SW, Zhou, WL, Zhang, P and Yang, S (2020) Design and fabrication of wideband dual-polarized dipole array for 5g wireless systems. IEEE Access 8, 1–1.Google Scholar
Li, Z, Sun, Y, Yang, M, Wu, Z and Tang, P (2017) A broadband dual-polarized magneto-electric dipole antenna for 2g/3g/lte/wimax applications. Progress In Electromagnetics Research C 73, 127–136.CrossRefGoogle Scholar
Yin, J, Wu, Q, Yu, C, Wand, H and Hong, W (2019) Broadband endfire magnetoelectric dipole antenna array using sicl feeding network for 5g millimeter-wave applications. IEEE Transactions on Antennas and Propagation 67, 4895–4900.CrossRefGoogle Scholar
Sun, K, Yang, D and Liu, S (2018) A wideband hybrid feeding circularly polarized magneto-electric dipole antenna for 5g wi-fi. Microwave and Optical Technology Letters 60, 1837–1842.CrossRefGoogle Scholar
Liu, D, Luo, H, Zhang, M, Wen, HL, Wang, B and Wang, J (2019) An extremely low-profile wideband mimo antenna for 5g smart-phones. IEEE Transactions on Antennas and Propagation 67, 1–1.CrossRefGoogle Scholar
Ullah, H and Tahir, F (2020) A novel snowflake fractal antenna for dual-beam applications in 28 ghz band. IEEE Access 8, 1–1.Google Scholar
Deng, J, Li, J, Zhao, L, and Guo, L (2017) A dual-band inverted-f mimo antenna with enhanced isolation for wlan applications. IEEE Antennas and Wireless Propagation Letters 16, 1–1.CrossRefGoogle Scholar
Liu, D, Zhang, M, Luo, H, He, J, Wen, HL and Wang, J (2018) Dual-band platform-free pifa for 5g mimo application of mobile devices. IEEE Transactions on Antennas and Propagation 66, 1–1.CrossRefGoogle Scholar
Dixit, AS and Kumar, S (2020) The enhanced gain and cost-effective antipodal vivaldi antenna for 5g communication applications. Microwave and Optical Technology Letters 62, 2365–2374.CrossRefGoogle Scholar
Dixit, AS and Kumar, S (2020) A miniaturized antipodal vivaldi antenna for 5g communication applications. 2020 7th International Conference on Signal Processing and Integrated Networks (SPIN). IEEE. pp. 800–803.CrossRefGoogle Scholar
Tiwari, N and Rao, TR (2017) Substrate integrated waveguide based high gain planar antipodal linear tapered slot antenna with dielectric loading for 60 ghz communications. Wireless Personal Communications 97, 1385–1400.CrossRefGoogle Scholar
Dixit, A and Kumar, S (2020) A survey of performance enhancement techniques of antipodal vivaldi antenna. IEEE Access 8, 1–1.CrossRefGoogle Scholar
Goel, T and Patnaik, A (2018) Novel broadband antennas for future mobile communications. IEEE Transactions on Antennas and Propagation 66, 1–1.CrossRefGoogle Scholar
Sharawi, M, Ikram, M and Shamim, A (2017) A two concentric slot loop based connected array mimo antenna system for 4g/5g terminals. IEEE Transactions on Antennas and Propagation 65, 6679–6686.CrossRefGoogle Scholar
Zhao, A and Ren, Z (2019) Wideband mimo antenna systems based on coupled-loop antenna for 5g n77/n78/n79 applications in mobile terminals. IEEE Access 7, 1–1.CrossRefGoogle Scholar
Lin, Z, Liu, H and Liu, C (2016) Design of sleeve broadband antenna for mobile terminals. 08. pp. 487–490.Google Scholar
Kim, M, Lee, W and Yoon, Y (2011) Wideband antenna for mobile terminals using a coupled feeding structure. pp. 1910–1913.Google Scholar
Ahn, J, Kim, S, Lee, MJ and Kim, YS (2012) A compact printed dual-band wlan antenna with a shorted coupling strip for mobile terminals. 12. pp. 313–315.CrossRefGoogle Scholar
Wang, K, Mauermayer, R and Eibert, T (2015) Contour integrated dual band compact antenna elements and arrays for low profile mobile terminals. IEEE Transactions on Antennas and Propagation 63, 1–1.CrossRefGoogle Scholar
Gomez-Villanueva, R, Jardon-Aguilar, H and Linares, R (2014) Broadband pifa antenna for mobile communications terminals. pp. 1–6.CrossRefGoogle Scholar
Islam, M and Ali, M (2011) Ground current modification of mobile terminal antennas and its effects. Antennas and Wireless Propagation Letters, IEEE 10, 438–441.CrossRefGoogle Scholar
Holopainen, J, Ilvonen, J, Valkonen, R, Azremi, AAH and Vainikainen, P (2012) Study on the minimum required size of the low-band cellular antenna in variable-sized mobile terminals. pp. 2754–2758.CrossRefGoogle Scholar
Chen, J, Chen, H, Zhang, H and Zhao, F (2016) Spectral-energy efficiency tradeoff in relay-aided massive mimo cellular networks with pilot contamination. IEEE Access 4, 5234–5242.CrossRefGoogle Scholar
Kang, G, Du, Z and Ke, G (2011) Compact broadband printed slot-monopole-hybrid diversity antenna for mobile terminals. Antennas and Wireless Propagation Letters, IEEE 10, 159–162.CrossRefGoogle Scholar
Sun, S, Cheng, M, Lu, S and Lin, J (2014) Compact mimo pifa for lte/ wwan operation in the mobile application. 07. pp. 26–28.CrossRefGoogle Scholar
Sonkki, M, Antonino-Daviu, E, Cabedo-Fabres, M, Ferrando-Bataller, M and Salonen, ET (2012) Improved planar wideband antenna element and its usage in a mobile mimo system. Antennas and Wireless Propagation Letters, IEEE 11, 826–829.CrossRefGoogle Scholar
Elshirkasi, A, Abdullah Al-Hadi, A, Soh, PJ, Mansor, MF, Khan, R, Chen, X and Akkaraekthalin, P (2020) Performance study of a mimo mobile terminal with upto 18 elements operating in the sub-6 ghz 5g band with user hand. IEEE Access 8, 28164–28177.CrossRefGoogle Scholar
Saurabh, AK and Meshram, MK (2020) Compact sub-6 ghz 5g-multiple-input-multiple-output antenna system with enhanced isolation. International Journal of RF and Microwave Computer-Aided Engineering 30, e22246.CrossRefGoogle Scholar
Wong, KL, Chang, HJ, Chen, JZ and Wang, KY (2020) Three wideband monopolar patch antennas in a y-shape structure for 5g multi-input-multi-output access points. IEEE Antennas and Wireless Propagation Letters 19, 1–1.CrossRefGoogle Scholar
Chen, HD, Tsai, YC and Kuo, C (2020) Broadband 8-antenna array design for sub-6 ghz 5g nr bands metal-frame smartphone applications. IEEE Antennas and Wireless Propagation Letters, 1–1.Google Scholar
Dadgarpour, A, Zarghooni, B, Virdee, B, Denidni, TA and Kishk, AA (2016) Mutual coupling reduction in dielectric resonator antennas using metasurface shield for 60 ghz mimo systems. IEEE Antennas and Wireless Propagation Letters 16, 1–1.Google Scholar
Yan, JB and Bernhard, J (2012) Design of a mimo dielectric resonator antenna for lte femtocell base stations. IEEE Transactions on Antennas and Propagation 60, 438–444.CrossRefGoogle Scholar
Zou, L, Abbott, D and Fumeaux, C (2012) Omnidirectional cylindrical dielectric resonator antenna with dual polarization. IEEE Antennas and Wireless Propagation Letters 11, 515–518.CrossRefGoogle Scholar
Abdalrazik, A, Abd El-Hameed, A and Abdel-Rahman, A (2017) A three-port mimo dielectric resonator antenna using decoupled modes. IEEE Antennas and Wireless Propagation Letters 16, 3104–3107.CrossRefGoogle Scholar
Foroozanfard, E, De Carvalho, E and Pedersen, GF (2017) Design and evaluation of full-duplex terminal antennas in realistic user scenarios. IEEE Antennas and Wireless Propagation Letters 16, 1851–1854.CrossRefGoogle Scholar
Xu, S, Zhang, M, Wen, H, and Wang, J (2017) Deep-subwavelength decoupling for mimo antennas in mobile handsets with singular medium. Scientific Reports 7, 1–9.Google ScholarPubMed
Abdullah, M, Ban, YL, Kang, K, Li, MY and Amin, M (2017) Eight-element antenna array at 3.5 ghz for mimo wireless application. Progress In Electromagnetics Research 78, 209–216.CrossRefGoogle Scholar
Cihangir, A, Ferrero, F, Jacquemod, G, Brachat, P and Luxey, C (2014) Neutralized coupling elements for mimo operation in 4g mobile terminals. IEEE Antennas and Wireless Propagation Letters 13, 141–144.CrossRefGoogle Scholar
Wang, Y and Du, Z (2014) A wideband printed dual-antenna with a protruded ground for mobile terminals. 2014 IEEE Antennas and Propagation Society International Symposium (APSURSI). IEEE. pp. 1133–1134.CrossRefGoogle Scholar
Wang, Y and Du, Z (2013) A wideband printed dual-antenna system with a novel neutralization line for mobile terminals. IEEE antennas and wireless propagation letters 12, 1428–1431.CrossRefGoogle Scholar
Guo, J, Cui, L, Li, C and Sun, B (2018) Side-edge frame printed eight-port dual-band antenna array for 5g smartphone applications. IEEE Transactions on Antennas and Propagation 66, 7412–7417.CrossRefGoogle Scholar
Ren, Z, Zhao, A and Wu, S (2019) Mimo antenna with compact decoupled antenna pairs for 5g mobile terminals. IEEE Antennas and Wireless Propagation Letters 18, 1367–1371.CrossRefGoogle Scholar
Yang, SJ, Pan, YM, Zhang, Y, Gao, Y and Zhang, XY (2019) Low-profile dual-polarized filtering magneto-electric dipole antenna for 5g applications. IEEE Transactions on Antennas and Propagation 67, 6235–6243.CrossRefGoogle Scholar
Chattha, HT (2019) 4-port 2-element mimo antenna for 5g portable applications. IEEE Access 7, 96516–96520.CrossRefGoogle Scholar
Li, MY, Ban, YL, Xu, ZQ, Guo, J and Yu, ZF (2017) Tri-polarized 12-antenna mimo array for future 5g smartphone applications. IEEE Access 6, 6160–6170.CrossRefGoogle Scholar
Liu, HY and Huang, CJ (2019) Wideband mimo antenna array design for future mobile devices operating in the 5g nr frequency bands n77/n78/n79 and lte band 46. IEEE Antennas and Wireless Propagation Letters 19, 74–78.Google Scholar
Li, Y, Sim, CYD, Luo, Y and Yang, G (2019) High-isolation 3.5 ghz eight-antenna mimo array using balanced open-slot antenna element for 5g smartphones. IEEE Transactions on Antennas and Propagation 67, 3820–3830.CrossRefGoogle Scholar
Zhang, LW, Ban, YL, Sim, CYD, Guo, J and Yu, ZF (2018) Parallel dual-loop antenna for wwan/lte metal-rimmed smartphone. IEEE Transactions on Antennas and Propagation 66, 1217–1226.CrossRefGoogle Scholar
Lian, JW, Ban, YL, Yang, YL, Zhang, LW, Sim, CYD and Kang, K (2016) Hybrid multi-mode narrow-frame antenna for wwan/lte metal-rimmed smartphone applications. IEEE Access 4, 3991–3998.CrossRefGoogle Scholar
Cai, Q, Li, Y, Zhang, X and Shen, W (2019) Wideband mimo antenna array covering 3.3–7.1 ghz for 5g metal-rimmed smartphone applications. IEEE Access 7, 142070–142084.CrossRefGoogle Scholar
Chang, L, Yu, Y, Wei, K and Wang, H (2019) Polarization-orthogonal co-frequency dual antenna pair suitable for 5g mimo smartphone with metallic bezels. IEEE Transactions on Antennas and Propagation 67, 5212–5220.CrossRefGoogle Scholar
Sun, L, Li, Y, Zhang, Z and Feng, Z (2019) Wideband 5g mimo antenna with integrated orthogonal-mode dual-antenna pairs for metal-rimmed smartphones. IEEE Transactions on Antennas and Propagation 68, 2494–2503.CrossRefGoogle Scholar
Huang, D, Du, Z and Wang, Y (2019) Slot antenna array for fifth generation metal frame mobile phone applications. International Journal of RF and Microwave Computer-Aided Engineering 29, e21841.CrossRefGoogle Scholar
Li, Y, Sim, CYD, Luo, Y and Yang, G (2019) Metal-frame-integrated eight-element multiple-input multiple-output antenna array in the long term evolution bands 41/42/43 for fifth generation smartphones. International Journal of RF and Microwave Computer-Aided Engineering 29, e21495.CrossRefGoogle Scholar
Lai, HW and Wong, H (2014) Substrate integrated magneto-electric dipole antenna for 5g wi-fi. IEEE Transactions on Antennas and Propagation 63, 870–874.CrossRefGoogle Scholar
ul Haq, MA, Khan, MA and Islam, MR (2016) Mimo antenna design for future 5g wireless communication systems. In Lee, R (ed.), Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing. Studies in Computational Intelligence, vol 653. Cham: Springer, pp. 175–183.CrossRefGoogle Scholar
Abdullah, M, Ban, YL, Kang, K, ford Sarkodie, OKK and Li, MY (2017) Compact 4-port mimo antenna system for 5g mobile terminal. 2017 International Applied Computational Electromagnetics Society Symposium-Italy (ACES). IEEE. pp. 1–2.CrossRefGoogle Scholar
Sharawi, MS, Podilchak, SK, Khan, MU and Antar, YM (2017) Dual-frequency dra-based mimo antenna system for wireless access points. IET Microwaves, Antennas & Propagation 11, 1174–1182.CrossRefGoogle Scholar
Zhang, Y, Deng, J-Y, Li, M-J, Sun, D and Guo, L-X (2019) A mimo dielectric resonator antenna with improved isolation for 5g mm-wave applications. IEEE Antennas and Wireless Propagation Letters 18, 747–751.CrossRefGoogle Scholar
Dixit, A and Kumar, S (2020) The enhanced gain and cost-effective antipodal vivaldi antenna for 5g communication applications. Microwave and Optical Technology Letters 62, 2365–2374.CrossRefGoogle Scholar
Diawuo, H and Jung, YB (2017) Wideband proximity coupled microstrip linear array design for 5g mobile communication. Microwave and Optical Technology Letters 59, 2996–3002.CrossRefGoogle Scholar
Dadgarpour, A, Sorkherizi, MS and Kishk, AA (2017) High-efficient circularly polarized magnetoelectric dipole antenna for 5g applications using dual-polarized split-ring resonator lens. IEEE Transactions on Antennas and Propagation 65, 4263–4267.CrossRefGoogle Scholar
Mujammami, EH and Sebak, AB (2019) Wideband high gain printed quasi-yagi diffraction gratings-based antenna for 5g applications. IEEE Access 7, 18 089–18 100.CrossRefGoogle Scholar
Parchin, NO, Al-Yasir, YIA, Ali, AH, Elfergani, I, Noras, JM, Rodriguez, J and Abd-Alhameed, RA (2019) Eight-element dual-polarized mimo slot antenna system for 5g smartphone applications. IEEE Access 7, 15 612–15 622.CrossRefGoogle Scholar
Zhang, S, Syrytsin, I and Pedersen, GF (2018) Compact beam-steerable antenna array with two passive parasitic elements for 5g mobile terminals at 28 ghz. IEEE Transactions on Antennas and Propagation 66, 5193–5203.CrossRefGoogle Scholar
Xi, L (2019) A wideband planar filtering dipole antenna for 5g communication applications. Microwave and Optical Technology Letters 61, 2746–2751.CrossRefGoogle Scholar
Zhu, Q, Ng, KB, Chan, CH and Luk, K-M (2017) Substrate-integrated-waveguide-fed array antenna covering 57–71 ghz band for 5g applications. IEEE Transactions on Antennas and Propagation 65, 6298–6306.CrossRefGoogle Scholar
Kim, E, Ko, S-T, Lee, YJ and Oh, J (2018) Millimeter-wave tiny lens antenna employing u-shaped filter arrays for 5g. IEEE Antennas and Wireless Propagation Letters 17, 845–848.CrossRefGoogle Scholar
Sharawi, M (2017) Current misuses and future prospects for printed multiple-input, multiple-output antenna systems [wireless corner]. IEEE Antennas and Propagation Magazine 59, 162–170.CrossRefGoogle Scholar
Sun, D and Wei, C (2016) Analysis and design of 4×4 mimo-antenna systems in mobile phone. Journal of Computer and Communications 04, 26–33.CrossRefGoogle Scholar
Lee, JM, Kim, KB, Ryu, HK and Woo, JM (2012) A compact ultrawideband mimo antenna with wlan band-rejected operation for mobile devices. IEEE Antennas and Wireless Propagation Letters 11, 990–993.Google Scholar
Sharawi, MS (2013) Printed multi-band mimo antenna systems and their performance metrics [wireless corner]. IEEE Antennas and Propagation Magazine 55, 218–232.CrossRefGoogle Scholar
Sharawi, M, Hassan, A and Khan, MU (2017) Correlation coefficient calculations for mimo antenna systems: a comparative study. International Journal of Microwaves and Wireless Technologies 9, 1991–2004.CrossRefGoogle Scholar
Pan, B, Papapolymerou, J and Tentzeris, MM (2008) MEMS integrated and micromachined antenna elements, arrays, and feeding networks. In Balanis, CA (ed.), Modern Antenna Handbook. John Wiley & Sons, Ltd, pp. 829–865, https://doi.org/10.1002/9780470294154.ch17.CrossRefGoogle Scholar
Savy, L and Lesturgie, M (2016) Coupling effects in mimo phased array. In 2016 IEEE Radar Conference (RadarConf). pp. 1–6. doi: 10.1109/RADAR.2016.7485179CrossRefGoogle Scholar
Allen, JL and Diamond, BL (1966) Mutual coupling in array antennas, Massachusetts Inst of Tech Lexington Lab 65.Google Scholar
Manteghi, M and Rahmat-Samii, Y (2005) Multiport characteristics of a wide-band cavity backed annular patch antenna for multipolarization operations. IEEE Transactions on Antennas and Propagation 53, 466–474.CrossRefGoogle Scholar
Chen, KH and Kiang, JF (2015) Effect of mutual coupling on the channel capacity of mimo systems. IEEE Transactions on Vehicular Technology 65, 1–1.Google Scholar
Plicanic, V, Lau, B, Derneryd, A and Ying, Z (2009) Actual diversity performance of a multiband diversity antenna with hand and head effects. IEEE Transactions on Antennas and Propagation 57, 1547–1556.CrossRefGoogle Scholar
Fan, W, Kyösti, P, Ji, Y, Hentilä, L, Chen, X and Pedersen, GF (2017) Experimental evaluation of user influence on test zone size in multi-probe anechoic chamber setups. IEEE Access 5, 18545–18556.CrossRefGoogle Scholar
Lu, S, Hui, H, Bialkowski, M, Lui, HS and Shuley, NV (2007) Ber performance of mimo-ofdm systems with the existence of antenna mutual coupling. pp. 2949–2952.Google Scholar
Chen, X, Zhang, S and Li, Q (2018) A review of mutual coupling in mimo systems. IEEE Access 6, 24 706–24 719.CrossRefGoogle Scholar
Ban, YL, Chen, ZX, Chen, Z, Kang, K and Li, JLW (2014) Decoupled hepta-band antenna array for wwan/lte smartphone applications. IEEE Antennas and Wireless Propagation Letters 13, 999–1002.Google Scholar
Ishteyaq, I, Masoodi, IS and Muzaffar, K (2019) Wideband printed quasi-yagi mimo antenna for milli-meter wave applications. 2019 IEEE Indian Conference on Antennas and Propogation (InCAP). pp. 1–4.CrossRefGoogle Scholar
Li, G, Zhai, H, Ma, Z, Liang, C, Yu, R and Liu, S (2014) Isolation-improved dual-band mimo antenna array for lte/wimax mobile terminals. Antennas and Wireless Propagation Letters, IEEE 13, 1128–1131.Google Scholar
Pan, BC and Cui, T (2017) Broadband decoupling network for dual-band microstrip patch antennas. IEEE Transactions on Antennas and Propagation 65, 5595–5598.CrossRefGoogle Scholar
Nadeem, I and Choi, DY (2018) Study on mutual coupling reduction technique for mimo antennas. IEEE Access 7, 1–1.Google Scholar
Jiang, W, Liu, B, Cui, Y and Hu, W (2019) High isolation eight-element mimo array for 5g smartphone applications. IEEE Access 7, 1–1.Google Scholar
Zhang, S and Pedersen, G (2015) Mutual coupling reduction for uwb mimo antennas with a wideband neutralization line. IEEE Antennas and Wireless Propagation Letters 99, 1–1.Google Scholar
Yang, Z, Xiao, J and Ye, Q (2020) Enhancing mimo antenna isolation characteristic by manipulating the propagation of surface wave. IEEE Access 8, 1–1.Google Scholar
Mak, ACK, Rowell, CR and Murch, RD (2008) Isolation enhancement between two closely packed antennas. IEEE Transactions on Antennas and Propagation 56, 3411–3419.CrossRefGoogle Scholar
Zhao, L and Wu, KL (2014) A decoupling technique for four-element symmetric arrays with reactively loaded dummy elements. IEEE Transactions on Antennas and Propagation 62, 4416–4421.CrossRefGoogle Scholar
Kowalewski, J, Eisenbeis, J, Jauch, A, Mayer, J, Krestchmann, M and Zwick, T (2020) A mmw broadband dual-polarized dielectric resonator antenna based on hybrid modes. IEEE Antennas and Wireless Propagation Letters 19, 1–1.CrossRefGoogle Scholar
Ouyang, J, Yang, F and Wang, Z (2011) Reducing mutual coupling of closely spaced microstrip mimo antennas for wlan application. Antennas and Wireless Propagation Letters, IEEE 10, 310–313.CrossRefGoogle Scholar
Liu, R, An, X, Zheng, H, Wang, M, Gao, Z and Li, E (2020) Neutralization line decoupling tri-band multiple-input multiple-output antenna design. IEEE Access 8, 27 018–27 026.CrossRefGoogle Scholar
Jetti, CR and Nandanavanam, VR (2018) Trident-shape strip loaded dual band-notched uwb mimo antenna for portable device applications. AEU-International Journal of Electronics and Communications 83, 11–21.Google Scholar
Shen, X, Liu, Y, Zhao, L, Huang, G-L, Shi, X and Huang, Q (2019) A miniaturized microstrip antenna array at 5g millimeter-wave band. IEEE Antennas and Wireless Propagation Letters 18, 1671–1675.CrossRefGoogle Scholar
Karthikeya, GS, Abegaonkar, MP and Koul, SK (2019) Path loss compensated beam switchable antennas with spatially modulated zero-index metamaterial loading for 5g base stations. IET Microwaves, Antennas & Propagation 13, 2509–2514.CrossRefGoogle Scholar
He, Z, Jin, J, Zhang, Y and Duan, Y (2019) Design of a two-dimensional “T” shaped metamaterial with wideband, low loss. IEEE Transactions on Applied Superconductivity 29, 1–4.Google Scholar
Nadeem, I and Choi, D-Y (2019) Study on mutual coupling reduction technique for mimo antennas. IEEE Access 7, 563–586.CrossRefGoogle Scholar
Yue, T, Jiang, ZH and Werner, DH (2019) A compact metasurface-enabled dual-band dual-circularly polarized antenna loaded with complementary split ring resonators. IEEE Transactions on Antennas and Propagation 67, 794–803.CrossRefGoogle Scholar
Feng, S, Zhang, L, Yu, H-W, Zhang, Y-X and Jiao, Y-C (2019) A single-layer wideband differential-fed microstrip patch antenna with complementary split-ring resonators loaded. IEEE Access 7, 132 041–132 048.CrossRefGoogle Scholar
Gao, Y, Ma, R, Wang, Y, Zhang, Q and Parini, C (2016) Stacked patch antenna with dual-polarization and low mutual coupling for massive mimo. IEEE Transactions on Antennas and Propagation 64, 4544–4549.CrossRefGoogle Scholar
Wu, KL, Wei, C, Mei, X and Zhang, ZY (2017) Array-antenna decoupling surface. IEEE Transactions on Antennas and Propagation, 1–1.Google Scholar
Jiang, M, Chen, ZN, Zhang, Y, Hong, W and Xuan, X (2016) Metamaterial-based thin planar lens antenna for spatial beamforming and multibeam massive mimo. IEEE Transactions on Antennas and Propagation 65, 1–1.Google Scholar
Qi, Y, Yang, G, Liu, L, Fan, J, Orlandi, A, Kong, H, Yu, W and Yang, Z (2017) 5g over-the-air measurement challenges: overview. IEEE Transactions on Electromagnetic Compatibility 59, 1–10.CrossRefGoogle Scholar
Li, Y, Sim, C, Luo, Y and Yang, G (2018) 12-port 5g massive mimo antenna array in sub-6ghz mobile handset for lte bands 42/43/46 applications. IEEE Access 6, 344–354.CrossRefGoogle Scholar
Di Paola, C, Syrytsin, I, Zhang, S and Pedersen, GF (2018) Investigation of user effects on mobile phased antenna array from 5 to 6 GHz. 2018 IEEE 12th European Conference on Antenna and Propagation (EuCAP). Institution of Engineering and Technology: US. doi:10.1049/cp.2018.120CrossRefGoogle Scholar
34 ISCC (2003) Ieee recommended practice for determining the peak spatial-average specific absorption rate (sar) in the human head from wireless communications devices: Measurement techniques. Institute of Electrical and Electronic Engineers.Google Scholar
Nazeri, A, Abdolali, A and Mehdi, M (2019) An extremely safe low-sar antenna with study of its electromagnetic biological effects on human head. Wireless Personal Communications 109, 1449–1462.CrossRefGoogle Scholar
Isa, CMNC, Al-Hadi, AA, Azemi, SN, Ezanuddin, AM, Lago, H and Jamlos, MF (2016) Effects of hand on the performance of 5 ghz two-port terminal antennas. 2016 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE), pp. 207–210.CrossRefGoogle Scholar
Ishteyaq, I, Shah Masoodi, I and Muzaffar, K (2021) A compact double-band planar printed slot antenna for sub-6 ghz 5g wireless applications. International Journal of Microwave and Wireless Technologies 13, 469–477.CrossRefGoogle Scholar
Ishteyaq, I, Masoodi, IS and Muzaffar, K (2020) Six-element mimo antenna with slot ring radiators for future 5g hand-held mobile applications. 2020 IEEE Bangalore Humanitarian Technology Conference (B-HTC). pp. 1–4.CrossRefGoogle Scholar
Union, IT (2015) Recommendation ITU-R BT. 2020-2. Electronic Publication.Google Scholar
Kumar, S, Dixit, AS, Malekar, RR, Raut, HD and Shevada, LK (2020) Fifth generation antennas: a comprehensive review of design and performance enhancement techniques. IEEE Access 8, 163568–163593.CrossRefGoogle Scholar
Kutty, S and Sen, D (2015) Beamforming for millimeter wave communications: an inclusive survey. IEEE Communications Surveys & Tutorials 18, 949–973.CrossRefGoogle Scholar
Li, MY, Xu, Z, Ban, YL, Yang, QL and Zhou, QQ (2016) Eight-port dual-polarized mimo antenna for 5g smartphone applications. 07, pp. 195–196.CrossRefGoogle Scholar
Li, MY, Xu, Z, Ban, YL, Sim, CYD and Yu, ZF (2017) Eight-port orthogonally dual-polarised mimo antennas using loop structures for 5g smartphone. IET Microwaves, Antennas Propagation 11, 1810–1816.CrossRefGoogle Scholar
Abdullah Al-Hadi, A, Ilvonen, J, Valkonen, R and Viikari, V (2014) Eight-element antenna array for diversity and mimo mobile terminal in lte 3500 mhz band. Microwave and Optical Technology Letters 56, 1323–1327.CrossRefGoogle Scholar
Zhang, M, Wang, J, Qin, Z and Geyi, W (2016) Printed eight-element mimo system for compact and thin 5g mobile handest. Electronics Letters 52, 416–418.Google Scholar
Ban, YL, Li, C, Sim, CYD, Wu, G and Wong, KL (2016) 4g/5g multiple antennas for future multi-mode smartphone applications. IEEE Access 4, 1–1.CrossRefGoogle Scholar
Ojaroudi Parchin, N, Jahanbakhsh, H, Al-Yasir, Y, Ullah, A, Abd-Alhameed, RA and Noras, JM (2019) Multi-band mimo antenna design with user-impact investigation for 4g and 5g mobile terminals. Sensors 19, 456.CrossRefGoogle ScholarPubMed
Ojaroudi Parchin, N, Jahanbakhsh, H, Alibakhshikenari, M, Ojaroudi, Parchin Y, Al-Yasir, YIA, Abd-Alhameed, RA and Limiti, E (2019) Mobile-phone antenna array with diamond-ring slot elements for 5g massive mimo systems. Electronics 8, 521.CrossRefGoogle Scholar
Ojaroudi Parchin, N, Jahanbakhsh, H, Al-Yasir, Y, M Abdulkhaleq, A, Patwary, M and A Abd-Alhameed, R (2020) A new cpw-fed diversity antenna for mimo 5g smartphones. Electronics 9, 261.CrossRefGoogle Scholar
Li, MY, Ban, YL, Xu, Z, Guo, J and Yu, ZF (2017) Tri-polarized 12-antenna mimo array for future 5g smartphone applications. IEEE Access 12, 1–1.Google Scholar
Ojaroudi Parchin, N, Al-Yasir, Y, Ali, A, Elfergani, I, Noras, JM, Rodriguez, J and Abd-Alhameed, Ra (2019) Eight-element dual-polarized mimo slot antenna system for 5g smartphone applications. IEEE Access 7, 15612–15622.CrossRefGoogle Scholar
Wong, KL, Lu, JY, Chen, LY, Li, WY and Ban, YL (2016) 8-antenna and 16-antenna arrays using the quad-antenna linear array as a building block for the 3.5-ghz lte mimo operation in the smartphone. Microwave and Optical Technology Letters 58, 174–181.CrossRefGoogle Scholar
Zhao, A and Ren, Z (2018) Size reduction of self-isolated mimo antenna system for 5g mobile phone applications. IEEE Antennas and Wireless Propagation Letters 18, 1–1.Google Scholar
Sun, L, Feng, H, Li, Y and Zhang, Z (2018) Compact 5g mimo mobile phone antennas with tightly-arranged orthogonal mode pairs. IEEE Transactions on Antennas and Propagation 66, 1–1.CrossRefGoogle Scholar
Shafique, K, Khawaja, BA, Sabir, F, Qazi, S and Mustaqim, M (2020) Internet of things (iot) for next-generation smart systems: A review of current challenges, future trends and prospects for emerging 5g-iot scenarios. IEEE Access 8, 23022–23040.CrossRefGoogle Scholar
Bhattacharjee, S, Saha, S, Santra, A, Banerjee, J and Ghatak, R (2019) A uwb antenna with bandwidth enhancement for 5g, iot, usb-dongle and uwb wireless applications. 2019 IEEE Region 10 Symposium (TENSYMP). pp. 775–777.CrossRefGoogle Scholar
Alagarsamy, G and Shanthini, J (2018) Prototyping a butler matrix beamforming network for rf modeling for phased array antennas used in 5g iot technologies. 2018 International Conference on Soft-computing and Network Security (ICSNS). pp. 1–4.CrossRefGoogle Scholar
Ullah, R, Ullah, S, Kamal, B and Ullah, R (2019) A four-port multiple input multiple output (mimo) antenna for future 5g smartphone applications. 2019 International Conference on Electrical, Communication, and Computer Engineering (ICECCE). pp. 1–5.CrossRefGoogle Scholar
Chen, Y and Chu, Q (2019) An uwb inverted f antenna with coupled feeding for 5g smartphone. 2019 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC). pp. 1–2.CrossRefGoogle Scholar