Abstract
Quadruple notch band dual-port ultra-wideband (UWB) MIMO antenna is reported in this article. The proposed MIMO antenna is designed from a single port UWB antenna, which consists of an arrow-head shaped radiator loaded with two open-ended inverted L-shaped slots (Slot #1 and Slot #2) and one U-shaped slot (Slot #3) followed by a pair of mushroom type EBG structures. The inverted L-and U-shaped slots are liable for generating triple notch band behavior at 3.3 GHz, 4.03 GHz, and 5.4 GHz, respectively. Besides this, the antenna produces an extra notch band function at 6.0 GHz using a pair of mushroom type EBG structures. In addition to this, the antenna covers wideband ranging from 3.0 to 10.7 GHz which suitably meets the requirement of ultra-wideband (UWB) applications. The design is modeled over FR4 Epoxy material and having an overall size of 43 × 34.9 × 1.6 mm3. However, a rectangular decoupling strip is introduced below the substrate layer for reducing mutual coupling between them. Therefore the suggested antenna is having efficient notch controlling capabilities and its performance characteristics are evaluated and analyzed in terms of rejecting frequencies, Current concentrations, ECC, Diversity Gain, and radiation patterns.
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