Circularly Polarized Parasitic Strips Loaded Broadband Printed Antenna for Sub-6 GHz (n77/n78/n79) Domain

Abstract

A novel broadband circularly polarized compact antenna is designed with broad axial ratio bandwidth (ARBW) for Sub-6 GHz fifth-generation applications. The antenna is printed on a Duroid substrate (ϵ_r= 2.2, thickness of 0.8 mm). The proposed configuration consists of two diagonally opposite symmetric parasitic strips energized by the matched transmission line and supported by a defected ground plane on the other side. By utilizing two parasitic strips and DGS concepts, wideband bandwidth of 3.4 GHz (2–5.4 GHz) Simulated and 3-dB ARBW of 2.5 GHz (2.9–5.4 GHz) is achieved. The CP behavior of the proposed antenna is investigated and discussed in detail with the help of the surface current distribution plot and magnitude/phase vs frequency plot. Simulated findings are justified by the measured results. The suggested antenna's simple design and high AR bandwidth make it a promising option for a wide range of wireless networks.

KEYWORDS:

• Axial-ratio (AR)
• Broadband
• Circularly polarization (CP)
• Parasitic strips
• Surface current distribution

DISCLOSURE STATEMENT

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

Additional information

Notes on contributors

M. N. Manjunath

M N Manjunath was born in Bangalore rural district of Karnataka in 1988. He obtained the BE degree in electronics and communication engineering from Visvesvaraya Technological University in 2010 and MTech degree in electronics engineering fromthe Visvesvaraya Technological University in 2013. Currently, he is working as an assistant professor in the Department of Electronics & Communication Engineering, Nagarjuna College of Engineering and Technology, Bangalore, Karnataka, India. His research interests include modeling and simulation of RF devices and circuits and their applications. Email: [email protected]

Ajay Kumar Dwivedi

Ajay Kumar Dwivedi is working as an associate professor in the Department of Electronics & Communication Engineering, Nagarjuna College of Engineering and Technology, Bengaluru, Karnataka, India. He completed PhD from the Department of Electronics & Communication Engineering, Indian Institute of Information Technology Allahabad, Prayagraj, UP (India) in 2021. In 2015, he received the MTech degree in wireless communication engineering from the Sam Higginbottom University of Agriculture, Technology and Sciences, Deemed University, Allahabad, India. Completed BTech in electronics & communication engineering from the Uttar Pradesh Technical University, Lucknow, India, in 2010. He has 12 years of teaching and research experience. He is a member of IEEE, a life member of IETE and various other societies such as Antennas wave and Propagation society, etc. He has authored or co-authored more than 70 research papers in international/national journal/conference proceedings. His research interests include RF & microwave, dielectric resonator antenna, MIMO DRA, and metamaterial-based dielectric resonator antenna. He is a reviewer of international/ national journal/conference proceedings like IEEE Transactions on Vehicular Technology, IEEE Sensors Letters, Wireless Personal Communications,International Journal of Circuit Theory and Applications, Computer Networks, Journal of Infrared,Millimeter and Terahertz Waves and Waves in Random and Complex Media. Email: [email protected]

Nagesh Kallollu Narayanaswamy

Nagesh Kallollu Narayanaswamy is working as a professor and head of the department in electronics & communication engineering, Nagarjuna College of Engineering & Technology, Bengaluru, India. He completed PhD from Jawaharlal Nehru Technological University Anantapur (JNTUA) Anantapur- A P, India in 2016. In 2007, he received the MTech degree in digital electronics and communication from Nitte Mahalinga Adyanthaya Memorial Institute of Technology (NMAMIT) Mangalore, VTU, Karnataka, India. Completed BE in electronics and communication engineering from Siddganga Institute of Technology (SIT) -Tumkur. VTU, Karnataka, India in 2005. He has 15 years of teaching experience to UG and PG students. He has authored or co-authored more than 35 research papers in international journal/conference proceedings. His research interests include wireless communication, communication systems, IoT, and antennas. He is a reviewer of international journal/conference proceedings. Email: [email protected]

Anand Sharma

Anand Sharma was born in Agra (UP), India, in 1990. He received the BTech in electronics and communication engineering from Uttar Pradesh Technical University, Lucknow, India, in 2012 and MTech in ECE from Jaypee University of Engineering and Technology, Guna (MP), India. He completed his PhD from the Department of Electronics Engineering from the Indian Institute of Technology (Indian School of Mines), Dhanbad, India in 2018. He is currently an assistant professor in the Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, UP, India. He has authored or coauthored over 80 research papers in international/national journals/conference proceedings. His research interests include dielectric resonator antenna and microstrip antenna. Email: [email protected]

Vivek Singh

Vivek Singh was born in Allahabad district of UP in 1987. He obtained the BTech degree in electronics and communication engineering from Uttar Pradesh Technical University in 2009 and MTech degree in electronics engineering from the University of Allahabad in 2012. He obtained PhD degree in 2019 from the University of Allahabad. Currently, he is working as an associate professor at Nagarjuna College of Engineering & Technology, Bangalore, India. His research interests include modeling and simulation of RF devices and circuits and their applications. Corresponding author Email: [email protected]