Closely Mounted UWB MIMO Antenna with Notch Characteristics for Short-Range Wireless Video Transmission Application

ABSTRACT

In this paper, we introduce a four-port self-isolated double-sided Ultra Wide Band (UWB) MIMO antenna with WLN notch characteristics for short-range wireless high-definition (HD) video transmission applications. The double side orthogonal arrangement of the radiators is adopted to mitigate the mutual coupling between the four radiators without using an isolation structure. The proposed MIMO antenna design provides a UWB band with the notch characteristics at 5 GHz (4.6–5.9 GHz) by removing tapered rectangular slot. Employing a two-sided structure technique, it achieves an impedance bandwidth of 3.1–13 GHz while keeping isolation above 20 dB and a compact size of $28\times 28\times 1.6{\mathrm{m}\mathrm{m}}^3$. Critical parameters that affect antenna performance, such as bandwidth, surface current, radiation characteristics, envelope correlation coefficient (ECC), peak gain, are being investigated. Also, the proposed simulation and measurement results of the two-sided MIMO antenna show that it is suitable for UWB because of wide impedance bandwidth, radiation pattern, high gain, low ECC, and high isolation. Indoor environment test was conducted using the National Instruments (NI) 802.11 framework to verify the real-time short-range wireless HD video transmission and reception capacity of the proposed MIMO antenna.

KEYWORDS:

• Compact MIMO
• Double side MIMO antenna
• High gain
• MIMO antenna
• Reduced mutual coupling
• Self-isolated

Disclosure statement

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

Additional information

Notes on contributors

Prabhu Palanisamy

P Prabhu received his BE degree in electronics and communication engineering from Sudharsan Engineering College, Tamil Nadu, India (affiliated to Anna University, Chennai) in 2010 and ME degree in communication systems from Bannari Amman Institute of Technology, Tamil Nadu, India, in 2013. Presently, he is working as an assistant professor in SRMIST and pursuing PhD degree in the Department of Electronics and Communication Engineering at SRMIST, Chennai, India. His research interests include monopole antenna design, UWB antenna, MIMO antenna design.

Malarvizhi Subramani

S Malarvizhi received his BE degree in electronics and communication engineering from Arulmigu Meenakshi Amman College of Engineering, Tamil Nadu, India (affiliated to Madras University, Chennai) in 1989, ME degree in applied electronics from GCT Coimbatore, Tamil Nadu, India, in 1990 and received PhD degree in the College of Engineering, Guindy, Chennai, in 2006. Presently, she is working as a professor in the Department of Electronics and Communication Engineering at SRMIST, Chennai, India. Her research interests include RF antenna design, wireless communication, VLSI signal processing. Email: [email protected]