Dual band notched UWB MIMO antenna for surfaces penetrating application

Abstract

This paper introduces a novel compact planar Ultra-Wideband (UWB) Multiple-Input-Multiple-Output (MIMO) antenna with a dual-band notched performance for wireless communication systems application with Surfaces Penetrating (SP) capability. To avoid the interference from co-existing systems, two notched bands are introduced by including two symmetrical strips and three linked equal radius circles inside the radiating patches. The two ports MIMO antenna is printed on the low-cost FR4 substrate with a compact size of 0.293λ0×0.17λ0×0.008λ0 at 1.57 GHz. The measured results indicate that the −10 dB bandwidth of the proposed MIMO antenna covers a wide bandwidth 1.57–12.4 GHz (155.05%) with a dual-band rejection from 2.04 GHz to 3.98 GHz and from 4.8 GHz to 6.22 GHz. The effects of numerous construction and decoration surfaces on the antenna’s reflection coefficients are measured. Gypsum, White Portland Cement, Slate, Marble, Wood and Reinforced Concrete is tested. A good penetrating capability is measured which confirms the aptitude of the proposed MIMO antenna to work as SP antenna.