Alternatives to Metamaterial Based Antennas for Gain and Bandwidth Enhancement

Abstract

Several metamaterial antenna configurations have been proposed in the literature for gain and bandwidth enhancement. However, these antennas are rarely used in commercial applications due to complexity in their design and fabrication process. In this paper, different configurations of electromagnetically coupled microstrip antennas and arrays are proposed as an alternative antenna design for gain and bandwidth enhancement. A comparison is made between the configurations proposed in this paper and the metamaterial configurations reported in the literature. The proposed configurations have better gain and bandwidth than the metamaterial configurations within the smaller volume.

Keywords:

• Array
• Broad bandwidth
• Electromagnetically coupled
• High gain
• Metamaterial
• Microstrip antenna

Additional information

Notes on contributors

Ankit Nimbolkar

Ankit Nimbolkar received MTech degree in electrical engineering in 2018 from Indian Institute of Technology Bombay (IIT Bombay), Mumbai, India. His research interests are antennas and microwave circuits. Email: [email protected]

Hemant Kumar

Hemant Kumar (S’16-M’19 IEEE, M’20 IETE) received his PhD degree in electrical engineering from Indian Institute of Technology Bombay (IIT Bombay), Mumbai, India. Currently, he is working as an assistant professor in ECE Department at NIT, Tiruchirappalli. His research interests include broadband antennas, microstrip antennas and arrays, and monopulse tracking radar.

Girish Kumar

Girish Kumar received PhD degree in electrical engineering from IIT Kanpur in 1983. From 1983 to 1985, he was a research associate in the Electrical Engineering Department, Univ. of Manitoba, Winnipeg, Canada. From 1985 to 1991, he was an assistant professor in the Department of Electrical Engineering, Univ. of North Dakota, Grand Forks, USA. Since 1991, he is at IIT Bombay, where he is currently a professor in the Electrical Engineering Department. His areas of interest are: antennas, microwave circuits and systems. He has written over 270 papers in the international and national journals and conference proceedings. He is author of the two books and has filed 5 patents. He has been working on hazards of microwave radiation for the last one decade. He has written several reports and given presentations at various forums on the topic related to Cell Phone and Tower Radiation Hazards and Solutions. He is also chairman of the company “Wilcom Technologies Pvt Ltd”, which is an IIT Bombay incubated company formed through Society for Innovation and Entrepreneurship (SINE).Email: [email protected]