1. GIDAY GEBREHIWOT BSRAT - Ph.D at Andhra University, Visakhapatnam.
2. S. ARUNA - Assistant Professor, Andhra University College of Engineering (A). Head of the Department at Andhra
University College of Engineering (W).
3. K. SRINIVASA NAIK - Associate Professor in the Department of Electronics and Communication Engineering, Vignan’s Institute
of Information Technology.
This article presents a quadruple band-notched MIMO-UWB antenna with circular polarization (CP) characteristics in some frequency ranges. The monopole antenna has inverted L-shaped slots on the radiator element to create notches at 3.2GHz to 3.8GHz (Wi-MAX), 4.4GHz to 4.99GHz (military UAV, radio astronomy service, and public safety), 5.125GHz to 5.75GHz (WLAN), and 7.2GHz to 7.9GHz (x-band satellite communication). The circular polarization characteristics occurred over more than a 2GHz range with a center frequency of 10.8 GHz by truncating the radiating patch. The antenna has a radiation efficiency greater than 70% in the ultra-wideband range of 2.7–12.3GHz except for notched bands. The MIMO antenna has good diversity performance and uses a neutralization line (NL) for decoupling the closely placed monopole antennas. The experimental and simulated results are revealed for validity check.
Band notched, Ultra-wideband, Multiple-Input Multiple-output, Neutralization Line.