Near-field BER and EVM Measurement at 5.8 GHz in Mode-stirred Metal Enclosure

Authors

  • Mir Lodro George Green Institute for Electromagnetics Research-GGIEMR University of Nottingham, University Park, NG72RD, United Kingdom
  • Chris Smart George Green Institute for Electromagnetics Research-GGIEMR University of Nottingham, University Park, NG72RD, United Kingdom
  • Gabriele Gradoni George Green Institute for Electromagnetics Research-GGIEMR University of Nottingham, University Park, NG72RD, United Kingdom
  • Ana Vukovic George Green Institute for Electromagnetics Research-GGIEMR University of Nottingham, University Park, NG72RD, United Kingdom
  • Dave Thomas George Green Institute for Electromagnetics Research-GGIEMR University of Nottingham, University Park, NG72RD, United Kingdom
  • Steve Greedy George Green Institute for Electromagnetics Research-GGIEMR University of Nottingham, University Park, NG72RD, United Kingdom

Keywords:

BER, EVM, Metal Enclosure, OTA Measurements, Reverberation Chamber, SDR, USRP B210

Abstract

This work presents over-the-air (OTA) performance, near-field bit-error-ratio (BER), and error vector magnitude (EVM) measurement using software-defined radio (SDR) in the mode-stirred metal enclosure at 5.8 GHz. The metal enclosure is stirred at 5.8 GHz using metallic paddle rotating with uniform speed. Paddle rotation creates a uniform electromagnetic field in the metal enclosure. The electromagnetic field environment in the metal enclosure can be controlled by loading the cavity with absorbing material. Field absorption can be different depending on the amount of absorbing material and location of the absorbers in the metal enclosure. It is shown that signal attenuation increases as we increase the number of absorbers. BER and EVM are measured in this environment and the performance of SDR based digital receiver is analyzed in this environment at RF frequency of 5.8 GHz.

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Author Biographies

Mir Lodro, George Green Institute for Electromagnetics Research-GGIEMR University of Nottingham, University Park, NG72RD, United Kingdom

Mir Lodro is a Ph.D. student at George Green Institute for Electromagnetics Research-GGIEMR, University of Nottingham, UK. He has received a Master of Research-MRes in Electrical and Electronic Engineering from the same university in 2015. His areas of research interests are SDR based prototype development for channel measurements and modeling, wireless digital receiver design, reverberation chamber based measurements, channel modeling for short-range wireless communication such as wireless chip-to-chip communication, MIMO measurements, Large Intelligent Surface (LIS), 5G/6G wireless communication.

Chris Smart, George Green Institute for Electromagnetics Research-GGIEMR University of Nottingham, University Park, NG72RD, United Kingdom

Chris Smart has received his MEng. and Ph.D. degrees in Electrical and Electronic Engineering from the University of Nottingham in 1991 ans 1995 respectively. Following two years working as a Research Assistant at the University of Nottingham, he joined BAE SYSTEMS where he worked on 2D and 3D full field time domain techniques for electromagnetic field simulation for aerospace applications. In 2007 he re-joined the George Green Institute for Electromagnetics Research at the University of Nottingham as a Research Fellow where his research interests include the development and application of computational electromagnetics methods and the development techniques for time domain measurement of electromagnetic field including near-field methods, with applications to EMC and EMI studies.

Gabriele Gradoni, George Green Institute for Electromagnetics Research-GGIEMR University of Nottingham, University Park, NG72RD, United Kingdom

Gabriele Gradoni received the Ph.D. degree in electromagnetics from the Universit`a Politecnica Delle Marche, Ancona, Italy, in 2010. In 2008, he was a Visiting Researcher with the Time, Quantum Electromagnetics Team, National Physical Laboratory, Teddington, U.K. From 2010 to 2013, he was a Research Associate with the Institute for Research in Electronics and Applied Physics,University of Maryland, College Park, MD, USA.From 2013 to 2016, he was a Research Fellow with the School of Mathematical Sciences, University of Nottingham, U.K. Since 2016, he has been an Associate Professor of mathematics and electrical engineering with the University of Nottingham. His research activity is in probabilistic and asymptotics methods for propagation in complex wave systems, wave chaos, and MIMO wireless systems. He is a member of the American Physical Society and the Italian Electromagnetics Society. He was a recipient of the URSI Commission B Young Scientist Award in 2010 and 2016, and the Gaetano Latmiral Prize in 2015. Since 2014, he has been the URSI Commission E Early Career Representative.

Ana Vukovic, George Green Institute for Electromagnetics Research-GGIEMR University of Nottingham, University Park, NG72RD, United Kingdom

Ana Vukovic was born in Nis, Serbia, in 1968. She received the Diploma of Engineering degree in electronics and telecommunications from the University of Nis, Nis, Yugoslavia, in 1992 and the Ph.D. degree from the University of Nottingham, UK in 2000. From 1992 to 2001, she was a Research Associate with the University of Nottingham. In 2001, she joined the School of Electrical and Electronic Engineering, University of Nottingham, as a Lecturer. Her research interests are electromagnetics with a particular emphasis on applications in optoelectronics, microwaves and EMC.

Dave Thomas, George Green Institute for Electromagnetics Research-GGIEMR University of Nottingham, University Park, NG72RD, United Kingdom

Dave Thomas is a Professor of Electromagnetics Apllications and Director of The George Green Institute for Electromagnetics Research, The University of Nottingham, UK. His research interests are in electromagnetics compatibility, electromagnetics simulation, power system transients and power system protection. He is member of CIGRE and convenor for Joint Working Group C4.31 “EMC between communication circuits and power systems”, Chair of COST Action IC 1407 “Advanced Characterisation and Classification of Radiated Emissions in Densely Integrated Techniques (AcCREDIT)” and member of the EMC Europe International Steering Committee.

Steve Greedy, George Green Institute for Electromagnetics Research-GGIEMR University of Nottingham, University Park, NG72RD, United Kingdom

Steve Greedy was born in Cardiff, UK. He received the MEng. and Ph.D. degrees in 1998 and 2002 from the University of Nottingham. He is an Associate Professor within George Green Institute for Electromagnetics Research. His interests are in the area of experimental and computational electromagnetics with a focus on techniques used in the study of electromagnetics compatibility and signal integrity, specifically mechanisms that impact performance of wired and wireless communication systems.

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Published

2020-09-01

How to Cite

[1]
Mir Lodro, Chris Smart, Gabriele Gradoni, Ana Vukovic, Dave Thomas, and Steve Greedy, “Near-field BER and EVM Measurement at 5.8 GHz in Mode-stirred Metal Enclosure”, ACES Journal, vol. 35, no. 9, pp. 1080–1088, Sep. 2020.

Issue

2020: Vol 35 Iss 9

Section

Articles