Design and Analysis of a Six-Element UWB-X Band MIMO Antenna for High-Speed IoT, Imaging, and Radar Applications

Abstract

This research article reports a six-element multiple-input-multiple-output (MIMO) antenna for high-speed IoT, imaging, and Radar applications. The single-element UWB-X band antenna is designed and fabricated with asymmetric feed to achieve wider impedance-matched bandwidth. The antenna geometry is placed in planar on the 12-side polygon. A novel decoupling structure is used along with the ground plane which provides better isolation between each antenna and the antenna occupies an area of 8086mm². The proposed 6 × 6 MIMO antenna design achieves measured bandwidth of 2.72–14.0 GHz. Also, prototypes are fabricated and full-wave simulation with experiment has been performed where S-parameters (reflection and transmission coefficients), the maximum peak gain of 6.65dBi, radiation pattern (stable), and diversity performance including ECC < 0.045, DG > 9.990 dB, TARC < −40 dB and CCL < 0.30 b/s/Hz has been evaluated.

KEYWORDS:

• 6 × 6 MIMO antenna
• Asymmetric feed
• Diversity performance
• Novel decoupling structure
• Peak gain

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Manish Sharma

Manish Sharma received a BE degree in electronics and communication engineering from Mangalore University, Karnataka, India in 2000 and an MTech degree from Visvesvaraya Technological University, Karnataka, India in 2007. He received his PhD degree from the department of electronics engineering, Banasthali University, Rajasthan, India in 2017. He is currently working as professor-research at Chitkara University Research and Innovation Network (CURIN), Chitkara University, Punjab, India. His research interest includes computational electromagnetics, reconfigurable antennas, novel electromagnetic materials, dielectric resonator antennas, wideband/super wideband antennas, wideband/dual band/triple band microstrip antennas forwireless communication, smart andMIMOantennas systems, radio-frequency identification (RFID) antennas, antennas for healthcare, RF MEMS planar antenna on Si substrate, wireless networks, body area networks, meta surfacebased biosensors, designing of microstrip antennas using machine learning and artificial network. He has published more than 100+ research articles in SCI/SCOPUS Indexed Journals and has also been granted thirteen patents. He has guided two PhD students and currently, there are 8 PhD ongoing scholars. Corresponding author. Email: [email protected]

Tathababu Addepalli

Tathababu Addepalli was born in A.P., INDIA. He received his BTech degree from JNTUH, Hyderabad in 2007, MTech degree from JNTUK, Kakinada in 2010, and a PhD, degree from JNTUA, Anantapur in 2022. Currently, he is working as an associate professor in the department of ECE at Aditya Engineering College (A), Surampalem, Kakinada, A.P, INDIA. He has published 19 SCIE papers, 4 Scopus-indexed papers, and 8 papers presented at international conferences. The papers are published in various reputed international journals such as IEEE Access (IEEE), International Journal of Electronics and Communications (AEU, Elsevier), Alexandria Engineering Journal (AEJ, Elsevier)), International Journal of Communication Systems (IJCS, Wiley), Transaction on Emerging Telecommunication Technologies (ETT, Wiley), Electronics (MDPI), Micromachines (MDPI), Wireless Personal Communications (WPC, Springer), Wireless Networks (WN, Springer), Journal of Electromagnetic Waves and Applications (JEMWA, Taylor & Francis), and IETE Journal of Research (IETE, Taylor & Francis), presented 8 papers in Conferences (7 IEEE, 1 Springer), published 2 book chapters on THz antennas and planar microstrip antennas, and published 2 patents. He attended more than 40 workshops related to antennas and wireless communications in various reputed institutions. He is a reviewer for reputed journals such as IJCS, PIER, Electronics, Telecommunication Systems, AEU, Journal of Infrared, Millimeter, Terahertz Waves, and so on. His areas of interest are microstrip patch antennas, MIMOantennas, 5Gantennas (sub-6GHz andmm-Wave), UWBAntennas, flexible antennas, characteristicmode analysis (CMA), THz antennas, and metamaterial antennas. Email: [email protected]

K. N. Nagesh

Nagesh Kallollu Narayanaswamy is working as a professor and head of the department of electronics & communication engineering, at Nagarjuna College of Engineering & Technology, Bengaluru, India. He received his PhD from Jawaharlal Nehru Technological University Anantapur (JNTUA) Anantapur, A.P, India, in 2016. In 2007 he received his MTech. degree in digital electronics and communication from Nitte Mahalinga Adyanthaya Memorial Institute of Technology (NMAMIT) Mangalore, VTU, Karnataka, India. He received his BE in electronics and communication engineering from Siddganga Institute of Technology (SIT), Tumkur. VTU, Karnataka, India in 2005. He is a member of IEEE, a life member of IETE, and various other societies, such as Antennas Wave and Propagation Society, etc. He has 17 years of teaching experience with UG and PG students. He has authored or co-authored more than 45 research papers in international journal/conference proceedings. His research interests include Wireless communication, communication system, IoT, and antennas. He is a reviewer of many international journal/conference proceedings. Email: [email protected]

Nella Anveshkumar

Anveshkumar Nella is currently working as an assistant professor in the School of EEE, VIT Bhopal University, Bhopal, M. P, India. He pursued his PhD degree from the dept. of ECE, VNIT, Nagpur, India in 2019. He is having 3 years of teaching and research experience. He has published his research and review articles 17 in SCI/SCIE, 3 in Scopus, 5 in International/National Journals, and 16 in International/National conferences. He has edited three textbooks published by Springer in 2021 and 2022. He is also an active research consultant for several funded projects. His research interests include Antennas, RF circuits, and wireless communications. He is working in the area of plasmonic absorbers, meta-materials, high-directional UWB antennas, reconfigurable antennas, cognitive radio antennas, RF energy harvesting, THz, and mobile antennas. He is also an active reviewer for various IEEE, IET, Elsevier, and Springer Journals. Email: [email protected]

Dheeraj Kumar

Dheeraj Kumar received his MSc and PhD degrees in Physics. He is currently an assistant professor in the department of physics and electronics, Rajdhani College (University of Delhi), Delhi. He has published several scientific papers in the field of microstrip antennae. His research interests include MIMO, 5G antenna systems, and terahertz antennae. Email: [email protected]