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Abstract
The proposed antenna presents a dual-band monopole antenna with a wide axial ratio bandwidth, by using the modified ground plane. The tilted inverted L-shaped strip with an angle of α is printed on the FR4-epoxy substrate and is excited by the microstrip feedline. The overall dimension of the proposed antenna is 0.408λ0 × 0.326λ0 × 0.013λ0. The ground plane has been modified by introducing a Y-shaped strip, cutting a slot and connecting a stub for improving the characteristics of antenna performance. The design and simulation have been carried out by the EM simulator HFSS v.15 software. Once the antenna design is completed, the proposed antenna is fabricated and various characteristics are measured. The proposed antenna exhibits two distinct bands along with the percentage impedance bandwidths and axial ratio bandwidths of 75.32% (resonant at 2.35 GHz), 14.26% (resonant at 6.1 GHz) and 55.88% (center at 2.845 GHz), 15.96% (center at 6.075 GHz), respectively. The measured results are experimentally verified with simulated results and a good agreement is found between them. The measured impedance bandwidth, axial ratio and gain are good enough for commercial bands of wireless communication systems such as Bluetooth, Wi-Fi, WLAN, and WiMAX.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Additional information
Notes on contributors
Biplab Bag
Biplab Bag received his MTech degree from West Bengal University of Technology, West Bengal. He is currently working as assistant professor in the Department of Electrical Engineering, Murshidabad College of Engineering Technology. He is also doing his PhD in the Department of Engineering and Technological Studies, University of Kalyani. His research interests include microstrip antenna design for wireless systems, microstrip filter design, millimeter wave antenna, MIMO antenna, antenna array and biomedical signal processing. He has published as an author and co-author of more than 11 papers in different peer-reviewed international journals and conferences.
Partha Pratim Sarkar
Partha Pratim Sarkar received PhD in engineering from Jadavpur University in 2002. He obtained his ME degree from Jadavpur University in 1994. He earned his BE degree in electronics and telecommunication engineering from Bengal Engineering College in 1991. He is presently working as professor at the Department of Engineering and Technological Studies, University of Kalyani. His area of research includes microstrip antenna, microstrip filter, frequency selective surfaces, and artificial neural network. He has contributed to numerous research articles in various journals and conference of repute. He is also a life Fellow of IETE and IE (India). Email: [email protected]