Novel H-shaped EBG in E-plane for Isolation Enhancement of Compact CPW-fed Two-Port UWB MIMO Antenna

Abstract

This paper intends to find out how to diminish the mutual coupling of closely spaced two-port antenna elements with a novel H-shaped EBG in the E-plane. The UWB MIMO antenna isolation is more than 20 dB in the entire operating frequency. The maximum isolation is up to 37 dB, obtained by the two-unit cell EBG placed between two CPW-fed antenna elements. Two-unit cell EBG is altering the current between radiating elements and enhancing up to 10 dB isolation. The proposed EBG decoupling MIMO antenna size is 35 mm × 22 mm and designed on the FR-4 substrate. The |S11| (in dB) varies from 3.4 to 10.4 GHz and covering most of UWB frequencies. This antenna has realized gain of more than 4 dB on a broader bandwidth with ECC and CCL under 0.01 and 0.35 bits/sec/Hz, respectively, across the entire 10 dB bandwidth.

KEYWORDS:

• Channel capacity loss (CCL)
• EBG decoupling
• Envelope correlation coefficient (ECC)
• Isolation enhancement
• Multiple-input-multiple-output (MIMO)

Additional information

Notes on contributors

Anubhav Kumar

Anubhav Kumar received his BTech and MTech from Uttar Pradesh Technical University (Now, Dr APJ AKTU), Lucknow, India, in electronics and communication engineering (ECE). He has more than ten years of teaching experience. He is currently pursuing a PhD from Shobhit Institute of Engineering and Technology (Deemed to be University) Meerut, Uttar Pradesh, India. His research interests include microstrip antenna, metamaterial, FSS, MIMO, wearable, EBG antenna and image processing.

Asok De

Asok De was born in November 1955 in Kolkata. He did his BTech, MTech from Jadavpur University, Kolkata, and PhD from the Indian Institute of Technology, Kharagpur. He served as faculty at the University of Delhi the University of Kolkata from 1984 to 1997. He joined as professor of Electronics and Communication Engineering at Delhi College of Engineering (At present, Delhi Technological University) in 1997. He was the founder principal of Ambedkar Institute of Advanced Communication Technology and Research (2005–2012). He served National Institute of Technology, Patna as director from 2012 to 2017. He also served National Institute of Technology Durgapur as director (Additional Charge) from 2015 to 2017. Professor De has published more than 200 research papers in international journals and international conferences. He supervised 16 PhD scholars. At present, he is an emeritus professor at Delhi Technological University Delhi. Email: [email protected]

R.K. Jain

R K Jain is a professor and associate dean of School of Engineering & Technology at Shobhit Institute of Engineering and Technology (Deemed-to-be University), Meerut, where he teaches and researches with the collaboration of BHU, Varanasi and BARC, Mumbai. Prof R K Jain obtained his PhD degree from the Banaras Hindu University, in 1990. He holds an all-through good academic record. After a brief period of SRA at GNDU, Amritsar, he got the opportunity of a postdoctoral fellowship under the TRIL programme, Trieste in Rome from November 1997 to July 2001. He worked on Cosmic Radiation and calculated the radiation doses at different altitudes using passive detectors at ANPA (National Agency for Environmental Protection), Rome. He also worked as postdoctoral fellow at Seoul National University, Seoul, S Korea from August 2001 to April 2002 and was involved in “Dark Matter Search” project. He also got postdoctoral fellowship at the Department of Physics, North Carolina State University, Raleigh, USA from May 2002 to June 2003 and worked on low-intensity and low-energy proton beams for the development of low-energy proton detectors (needed to detect protons emitted in neutron beta decay). He has also visited several labs and delivered lectures abroad. He has attended and presented research papers in international/national conferences/seminars/symposiums abroad. He has been awarded the Confederation of Education Excellence (CEE) Teacher’s Award 2014 in recognition of outstanding contribution. He has nearly 23 years of teaching experience and 30 years of research after Ph.D. Email: [email protected]