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ABSTRACT
In this paper, we design a compact MIMO antenna with high isolation. The antenna covers 2.5/5.8 GHz frequency bands, which are allocated for Wi-MAX / WLAN applications. The suggested MIMO antenna consists of two identical F-shaped monopole antenna elements, which are symmetrically positioned on the top side of an FR-4 substrate. To increase the isolation between the two radiating elements, a T-shaped junction is added which acts as a short stub-loaded resonator (SSLR). To improve the impedance matching, different forms are engraved on the bottom. The measured results show that the proposed antenna has impedance bandwidths of 16.23% (2.32–2.73 GHz) and10.07% (5.56–6.15 GHz), with a mutual coupling of less than –19 dB. Also, the proposed design exhibits high diversity performance in terms of ECC (9.81 dB) on the entire operating band. Furthermore, the MIMO parameters like TARC and efficiency are also studied.
KEYWORDS:
Acknowledgment
The authors would like to thank Prof. Naima Amar Touhami of Abdelmalek Essaâdi University, Tetuan, Morocco for her professional support with regard to the measurement of the proposed antenna.
Disclosure statement
No potential conflict of interest was reported by the author(s).
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Notes on contributors
Aziz Dkiouak
Aziz Dkiouak was born in December 1985, in Tayjoute town, 30 km from Chefchaouen, Morroco. He received the Master’s degree in Electronics and Telecommunications at the Faculty of Sciences, Abdelmalek Essaâdi University, Tetouan, Morocco in 2010. He is currently working on a PhD degree and His research focuses on the design and realization of MIMO antennas with low mutual coupling for wireless applications. He is the author and co-author of several papers in international refereed journals and conferences in this field.
Alia Zakriti
Alia Zakriti received PhD degree in Electrical Engineering in 2001 from University Abdelmalek Essaâdi (UAE), Morocco. During 2004–2010, she was professor at Caddi Ayad University, Morocco. Since 2010, she joined the National School of Applied Sciences, UAE, as a Professor of Electrical Engineering. She directed a Research Unit “Advanced Science and Technology” during several years and she was also a head of department of Civil and Industrial Sciences and Technologies. Her research interests focus mainly on printed microwave circuits and embedded systems. She has authored and co-authored several papers in international refereed journals and conferences in the field of microwave communications Technology.
Mohssine El Ouahabi
Mohssine El Ouahabi was born in 1987 M’diq, Morocco. He received a Master degree in Telecommunication systems engineering from Abdelmalek Essaâdi University, Tetuan, Morocco, in 2013. He is currently working toward on a PhD degree in microwave circuits using the metamaterial structure at the same University. He has authored and co-authored several papers in international refereed journals and conferences in this field.
Aicha Mchbal
Aicha Mchbal is a PhD student, her doctoral research invetigates the enhancement of mimo antenna performances, she holds a master’s degree in telecommunication systems enginneering from the abdelmalek Essaâdi university of tetouan, morroco. She authored the article “mutual coupling reduction using a protruded ground branch structure in a compact UWB owl- shaped mimo antenna.”