Low-profile 2.4/5.8 GHz MIMO/diversity antenna for WLAN applications

ABSTRACT

A low-profile multi-input-multi-output (MIMO)/diversity antenna suitable for wireless local area network (WLAN) applications is presented. In the proposed antenna, two identical elements (each of size 20 × 47 mm²) are designed to operate at 2.4 GHz and other two identical elements (each of size 20.5 × 20 mm²) at 5.8 GHz. All elements of the proposed diversity antenna are printed on 1.6 mm thick FR-4 substrate in a coplanar configuration. By optimizing the distance between the antenna elements (in horizontal and vertical directions), optimal isolation and diversity performance are achieved. Compared to a single feed dual-band antenna, the MIMO/diversity antenna has the ability to transmit or receive the 2.4 and 5.8 GHz signals simultaneously, without any external switching circuit between the module and the proposed antenna.

KEYWORDS:

• Access point
• antenna
• MIMO
• WLAN

Disclosure statement

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

Additional information

Notes on contributors

Amit Birwal

Amit Birwal received the M.Tech in Microwave Electronics from the University of Delhi, in 2006, and B.Tech in Electronics & Telecommunication Engineering from Guru Gobind Singh Indraprastha University, Delhi, in 2003. He worked at various levels in development and test phases of telecom devices at Ericsson India. He now holds a position of Assistant Professor at the Department of Electronic Science, University of Delhi South Campus, India. His main research interests are the design and optimization of planar antennas for IoT based systems.

Sanjeev Singh

Sanjeev Singh has worked in the area of optical electronics and had obtained his Doctorate in Electronics, in 1997, from the University of Delhi, India. He holds a position of Associate Professor at Institute of Informatics and Communication, University of Delhi, India, and has published more than 50 research articles in various international/national journals and conferences. He is a Fellow of EU-India Cross Cultural Innovation Network. His current research areas are IoT based system design, security models and cyber-physical system.

Binod Kumar Kanaujia

Binod Kumar Kanaujia received the B.Tech in Electronics Engineering from the Kamla Nehru Institute of Technology, Sultanpur, India, in 1994, and the M.Tech and Ph.D from the Department of Electronics Engineering, Indian Institute of Technology Banaras Hindu University, Varanasi, India, in 1998 and 2004, respectively. He is currently a Professor with the School of Computational & Integrative Sciences, Jawaharlal Nehru University, New Delhi, India. He has been credited to publish more than 250 research papers with more than 1900 citations and H-index of 21 in several peer-reviewed journals and conferences. He had supervised 50 M.Tech. and 15 Ph.D. scholars in the field of RF & microwave engineering. Dr. Kanaujia is currently on the editorial board of several international journals. He is also a member of several academic and professional bodies i.e. Institution of Engineers, India, the Indian Society for Technical Education, and the Institute of Electronics and Telecommunication Engineers of India. He had successfully executed five research projects sponsored by several agencies of the Government of India i.e. DRDO, DST, AICTE, and ISRO.

Sachin Kumar

Sachin Kumar received the B.Tech in Electronics & Communication Engineering from Uttar Pradesh Technical University, Lucknow, India, in 2009, and the M.Tech and Ph.D. in Electronics & Communication Engineering from Guru Gobind Singh Indraprastha University, Delhi, India, in 2011 and 2016, respectively. He is currently a Researcher with the School of Electronics Engineering, Kyungpook National University, Daegu, South Korea. His current research interests include circularly-polarized microstrip antennas, reconfigurable antennas, ultra-wideband antennas, defected ground structure, and microwave components.