![Sample our Engineering & Technology journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5933/TOC-Subject-Sample-2021-Engineering-Tech.jpg"})
Abstract
A novel frequency reconfigurable multiple-input multiple-output (MIMO) antenna, operating in triple and dual band, is presented for wireless local area networks (WLAN). The proposed antenna comprises of two planar inverted F antenna (PIFA) elements integrated with two PIN diodes. When diodes are ON, the proposed antenna operates at 2.4, 5.2 and 5.8 GHz with a maximum frequency ratio of 2.41. When diodes are OFF, it operates at 5.2 GHz, 5.8 GHz with a frequency ratio of 1.11. Meander line resonator and T slot achieve good isolation amid PIFA elements. The simulated and experimental characteristics are in good agreement.
Acknowledgements
The authors are very much thankful to Excel Radio Frequency Technologies Private Limited, Hyderabad for providing the antenna test facility consisting of an anechoic chamber and vector network analyser for evaluating the proposed antenna.
Additional information
Notes on contributors
A. Bharathi
A Bharathi was born in Telangana, India in 1978. She obtained BTech degree with distinction in electronics and communication engineering (ECE) from Jawaharlal Nehru Technological University Hyderabad (JNTUH) in 2001 and ME in microwave and radar engineering from University College of Engineering, Osmania University, Hyderabad, Telangana, India in 2004. She obtained her PhD in the Department of ECE, JNTUH, Hyderabad. She is presently working as assistant professor in the Dept of ECE, University College of Engineering, Osmania University, Hyderabad, India. She has 16 years of teaching experience. Her research interests include antenna theory, reconfigurable antennas, radar systems, microwave and RF circuits, ultra wideband (UWB) antennas. She is a senior member of IEEE, and a member of IETE.
Ravi Shankar Reddy Gosula
G Ravi Shankar Reddy was born in Andhra Pradesh, India in 1978; he obtained BTech degree with distinction in electronics and communication engineering (ECE) from Jawaharlal Nehru Technological University Hyderabad (JNTUH) in 2001 and ME in systems and signal processing from University College of Engineering, Osmania University, Hyderabad, Telangana, India in 2004. He obtained his PhD in the Dept of ECE, JNTUA, Anantapur. He is presently working as professor in the Dept of ECE, CVR College of Engineering, Hyderabad, India. He has 15 years of teaching experience. His research interest includes signal processing for antenna theory. Email: [email protected]