CSRR-Loaded Compact Quad Port MIMO Diversity Antenna for UWB Applications

Abstract

In this article, a miniature MIMO antenna with four ports along with a complementary split ring resonator embedded in the ground plane, is presented. The proposed antenna consists of four identical radiating elements each of which has two isosceles triangles and one rectangular slot cut from the basic rectangular patch and placed on the same plane. The isolation of the proposed antenna has been improved by taking 4 L-shaped strips and two rectangular CSRR unit cells on the ground plane between antenna elements. The antenna characteristics, such as return loss (<−10 dB), isolation parameter (>18 dB), peak gain values vary from 0.5to 3.6 dB, the maximum efficiency of 84%, were measured. Further diversity of the MIMO antenna has been measured with reference to ECC<0.02, DG>9.95, TARC< −15 dB, MEG at each port less than 3 dB along with CCL<0.35 bits/s/Hz. The measured impedance bandwidth achieved from 2.8 to 18 GHz encompasses the whole ultra wideband range. The prototype antenna is quite suitable for today’s wireless communication devices.

KEYWORDS:

• Complementary Split Ring Resonator (CSRR)
• ECC
• Isolation
• MEG
• MIMO antenna
• UWB

Disclosure statement

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

Additional information

Notes on contributors

Pankaj Kumar Keshri

Pankaj Kumar Keshri received his BTech degree in electronics and communication from IET MJPRU Rohilkhand University, Bareilly, India, and MTech in electronics and communication from NIT Jalandhar, Punjab, India, in 2009 and 2011, respectively. He is currently pursuing PhD in UWB MIMO antenna from Lovely Professional University, Phagwara, Punjab. He has also been an assistant professor in Lovely Professional University since 2011. His area of research is the design and fabrication of UWB antenna, MIMO antenna, RF and microwave devices. Email: [email protected]

Sanjay Kumar Sahu

Sanjay Sahu is currently working as associate professor in the Department of Electronic and Communication Engineering, Lovely Professional University, Jalandhar, Punjab. He received his MTech degree in electronics and communication engineering from Anna University in 2006 and PhD degree from KIIT deemed to be University Bhubaneswar, Odisha, India. He has more than 15 years of teaching experience. In addition, he is actively involved in guiding more than 5 PhD students and the areas of his specialization are the design of metamaterial for antenna, photonic crystal fiber for sensing application and filters. He has published more than 25 research articles in many referred journals.

Richa Chandel

Richa Chandel received his BTech degree in electronics and communication engineering from Uttar Pradesh Technical University, Lucknow, India, in 2010, and the MTech degree in digital signal processing from Govind Ballabh Pant Engineering College, Pauri-Garhwal, India, in 2013. She completed her PhD degree from Govind Ballabh Pant Engineering College, Pauri Garhwal, India. She has been an assistant professor in Lovely Professional University, Phagwara, Punjab, India, since 2017. She has authored or co-authored over 20 research papers in peer-reviewed journals /conferences. Her current research interests include the designing and modeling of ultra wideband microstrip antenna and MIMO antenna. Email: [email protected]