A Reconfigurable Octa-Band Antenna with a High Gain for a Variety of Wireless Applications

Abstract

The Octa-band frequency reconfigurable antenna proposed in this paper can operate in the UWB, GSM, WiMax, 5G MID BAND, WLAN (C-BAND), WLAN (S-BAND), 5G (C-BAND), and STM link-1 bands. To achieve the desired operating frequency, the ground plane of the UWB monopole antenna is modified by embedding two inverted L-shape slots. A novel frequency selective surface (FSS) reflector consisting of a 5 × 5 array of elements is located at a distance of 0.78λ at 6.2 GHz below the proposed reconfigurable antenna to improve its gain. The addition of FSS resulted in a gain improvement of 3–7 dBi. The proposed antenna has a wide switching capability, allowing it to be integrated into portable electronic devices and making it suitable for 5G and other wireless applications.

KEYWORDS:

• 5G
• FSS
• Gain
• GSM
• Monopole
• UWBWLAN

Disclosure statement

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

Additional information

Funding

This work was supported by Science and Engineering Research Board and Department of Science and Technology, Govt. of India [grant number File No. EMR/2016/007229].

Notes on contributors

Rashmi A. Pandhare

Rashmi A Pandhare received her BTech degree in instrumentation and control engineering from D Y Patil college of Engineering, Pune, India in 2004 and MTech degree in electronics engineering from Nagpur University, India in 2011. She completed her PhD in antenna for wireless applications from University of Nagpur, India in 2018. Her areas of interest are reconfigurable antennas, antennas for biomedical applications, antennas for 5 G technology, high gain and UWB antennas, FSS structures and antenna radome. Corresponding author. Email: [email protected]

Mahesh P. Abegaonkar

Mahesh P Abegaonkar completed his BSc and MSc in electronics from Dr Babasaheb Ambedkar Marathwada University in 1993 and 1995 respectively. He obtained the PhD in microwave sensors from University of Pune in 2002. He worked as post-doctoral researcher and assistant professor in School of Electrical Engineering and Computer Science, Kyungpook National University, Daegu, South Korea during June 2002 – Jan. 2005. His research interests include microwave and millimetre wave metamaterial, millimetre wave antennas for 5G communications, MIMO, printed antennas reconfigurable, broadband, high gain etc. Email: [email protected]

Chandresh Dhote

Chandresh Dhote received the BE degree in electronics and communication from REC, Bhopal, MP, India in 2014 and his ME degree in electronics and telecommunication from Shri Govindram Seksaria Institute of Technology and Science, Indore, MP, India in 2017. He has given technical support for strategic key accounts to ISRO, DRDO, R&D, key educational institutes and industries. His research interests include microstrip antennas, FSS, EBG, filters, waveguide components, radar and radome. He has published several papers in international conferences and journals. Email: [email protected]