Design of UWB Antenna with Band Rejection Characteristics Using EBG Structures

In today's fast-evolving communication landscape, the demand for Ultra-wideband (UWB) antennas with band-notching capabilities has surged due to advancements in the field. This study showcases significant progress in UWB antenna technology, offering antennas that are characterized by their reduced weight, compact dimensions, and cost-effectiveness. This paper introduces an Ultra-wideband notch antenna consists of a simple EBG structure and a strategically designed slot to effectively mitigate interference from 5G sub-6and satellite uplink applications.The proposed design of the antenna combines an inverted π slot, with an Electromagnetic Band Gap (EBG) unit cell to minimize interference from both upper and lower frequency bands. The antenna is made with RT/duroid 5880 material having dimensions 50 × 42 × 1.57 mm³. The frequency range that the antenna can operate in is 2 to 12 GHz. with a notch band (3.3–3.7 GHz) designed to address interference from sub 6 5G signals, as well as an upper notch band (5.9 to 6.9 GHz) intended to reduce interference from satellite uplink communications. EM simulation software CST is used to examine the antenna's performance. This study presents the results obtained.