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Mutual coupling reduction with a wideband planar decoupling structure for UWB–MIMO antennas

Published online by Cambridge University Press:  04 July 2018

Alaa H. Radhi Open the ORCID record for Alaa H. Radhi [Opens in a new window] ,
R. Nilavalan ,
Yi Wang ,
H. S. Al-Raweshidy ,
Amira A. Eltokhy  and
Nur Ab Aziz
Alaa H. Radhi*
Affiliation:
College of Engineering, Design & Physical Science, Brunel University, London, UK
R. Nilavalan
Affiliation:
College of Engineering, Design & Physical Science, Brunel University, London, UK
Yi Wang
Affiliation:
Department of Engineering Science, University of Greenwich, Chatham Maritime, Kent, UK
H. S. Al-Raweshidy
Affiliation:
College of Engineering, Design & Physical Science, Brunel University, London, UK
Amira A. Eltokhy
Affiliation:
Department of Engineering Science, University of Greenwich, Chatham Maritime, Kent, UK
Nur Ab Aziz
Affiliation:
College of Engineering, Design & Physical Science, Brunel University, London, UK
*
Author for correspondence: Alaa H. Radhi, E-mail: [email protected]
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Abstract

A new planar multiple-input–multiple-output (MIMO) antenna for ultra wideband (UWB) applications is presented. The proposed antenna operates over the frequency band from 3.1 to 10.6 GHz and it consists of two identical circular monopoles on an FR4 substrate. The wide isolation is achieved through a novel planar decoupling structure that is being inserted between the dual antennas. Moreover, a center slot is etched on the common ground to further increase isolation. The effectiveness of the decoupling structure is analyzed, and performance study has been performed to investigate the mutual coupling reduction. A good isolation of more than 31 dB has been achieved through the entire UWB band (more than 12 dB improvement over the reference antenna). The proposed UWB antenna with and without the wideband decoupling structure has been investigated and verified both numerically and experimentally. The measurement results of the proposed UWB–MIMO antenna are in good agreement with the simulation results. The proposed UWB antenna has been compared with previous works regarding antenna size, geometric complexity, bandwidth, and isolation level. The proposed antenna has some outstanding characteristics such as a geometric simplicity, compact size, broad bandwidth, and low correlation which give the antenna an excellent diversity performance and a good candidate for UWB applications.

Keywords

Monopoles antennamultiple-input–multiple-output (MIMO)mutual coupling reductionultra wideband (UWB)
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 10 , Issue 10 , December 2018 , pp. 1143 - 1154
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2018 

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References

1.Balanis, CA (2005) Antenna Theory: Analysis and Design, 3rd Edn. Hoboken, NJ: John Wiley & Sons Inc.Google Scholar
2.Prasanna, KM and Behera, SK (2013) Compact two-port UWB MIMO antenna system with high isolation using a fork-shaped structure. 2013 International Conference on Communication and Signal Processing (ICCSP), India, pp. 726–729.Google Scholar
3.Zhang, S and Pedersen, GF (2016) Mutual coupling reduction for UWB MIMO antennas with a wideband neutralization line. IEEE Antennas and Wireless Propagation Letters 15, 166–169.Google Scholar
4.Li, Q, Feresidis, AP, Mavridou, M and Hall, PS (2015) Miniaturized double layer EBG structures for broadband mutual coupling reduction between UWB monopoles. IEEE Transactions on Antennas and Propagation 63, 1168–1171.Google Scholar
5.Li, Y, Li, W, Liu, C and Jiang, T (2012) A printed diversity Cantor set fractal antenna for ultra-wideband communication applications, International Symposium on Antennas, Propagation & EM Theory ( ISAPE 2012), China, pp. 34–38.Google Scholar
6.Chebihi, A, Luxey, C, Diallo, A, Le Thuc, P and Staraj, R (2008) A novel isolation technique for closely spaced PIFAs for UMTS mobile phones. IEEE Antennas and Wireless Propagation Letters 7, 665–668.Google Scholar
7.Chiu, C-Y, Cheng, C-H, Murch, RD and Rowell, CR (2007) Reduction of mutual coupling between closely-packed antenna elements. IEEE Transactions on Antennas and Propagation 55, 1732–1738.Google Scholar
8.Jusoh, M, Jamlos, MF, Kamarudin, MRB and Malek, MFBA (2012) A MIMO antenna design challenges for UWB application. Progress in Electromagnetics Research B 36, 357–371.Google Scholar
9.Lin, S-Y and Huang, H-R (2009) Ultra-wideband MIMO antenna with enhanced isolation. Microwave and Optical Technology Letters 51, 570–573.Google Scholar
10.Kiem, NK, Phuong, HNB, Hieu, QN and Chien, DN (2013) A compact printed 4 × 4 MIMO-UWB antenna with WLAN band rejection. 2013 IEEE Antennas and Propagation Society International Symposium (APSURSI), Orlando, Florida, pp. 2245–2246.Google Scholar
11.Liu, L, Cheung, SW and Yuk, TI (2013) Compact MIMO antenna for portable devices in UWB applications. IEEE Transactions on Antennas and Propagation 61, 4257–4264.Google Scholar
12.See, TSP and Chen, ZN (2009) An ultrawideband diversity antenna. IEEE Transactions on Antennas and Propagation 57, 1597–1605.Google Scholar
13.Wong, K-L, Su, S-W and Kuo, Y-L (2003) A printed ultra-wideband diversity monopole antenna. Microwave and Optical Technology Letters 38, 257–259.Google Scholar
14.Li, ZY, Du, ZW and Gong, K (2009) A dual-slot diversity antenna with isolation enhancement using parasitic elements for mobile handsets. Proceedings of the Asia Pacific Microwave Conference (APMC), Singapore, pp. 1821–1824.Google Scholar
15.Liu, L, Cheung, SW and Yuk, TI (2015) Compact MIMO antenna for portable UWB applications with band-notched characteristic. IEEE Transactions on Antennas and Propagation 63, 1917–1924.Google Scholar
16.Najam, AI, Duroc, Y and Tedjni, S (2011) UWB-MIMO antenna with novel stub structure. PIER C Progress In Electromagnetics Research C 19, 245–257.Google Scholar
17.Zhang, S, Ying, Z, Xiong, J and He, S (2009) Ultrawideband MIMO/diversity antennas with a tree-like structure to enhance wideband isolation. IEEE Antennas and Wireless Propagation Letters 8, 1279–1282.Google Scholar
18.Hong, S, Chung, K, Lee, J, Jung, S, Lee, S-S and Choi, J (2008) Design of a diversity antenna with stubs for UWB applications. Microwave and Optical Technology Letters 50, 1352–1356.Google Scholar
19.Choi, SH, Park, JK, Kim, SK and Park, JY (2004) A new ultrawideband antenna for UWB applications. Microwave and Optical Technology Letters 40, 399–401.Google Scholar
20.Byun, J, Jo, J-H and Lee, B (2008) Compact dual-band diversity antenna for mobile handset applications. Microwave and Optical Technology Letters 50, 2600–2604.Google Scholar
21.Mao, C-X, Chu, Q-X, Wu, Y-T and Qian, Y-H (2013) Design and investigation of closely-packed diversity UWB slot-antenna with high isolation. Progress in Electromagnetics Research C 41, 13–25.Google Scholar