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A dual-polarized UWB–MIMO antenna with IEEE 802.11ac band-notched characteristics using split-ring resonator

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Abstract

We propose a novel, compact, dual-polarized ultra-wideband (UWB)–multiple-input multiple-output (MIMO) antenna, which consists of an F-shaped monopole which band rejects the IEEE 802.11ac frequency band from 5.1 to 5.95 GHz with microstrip line feeding. The suppression of the inevitable mutual coupling is achieved by using techniques such as orthogonal polarization, defected ground structure, and metamaterials. A split-ring resonator is placed between the antenna elements to reduce the coupling. The antenna has wideband impedance matching with S11 < −10 dB in the UWB frequency range from 3.1 to 10.6 GHz and has a low mutual coupling with |S21| < −20 dB. The antenna has very low envelope correlation coefficient with values equal to zero and low capacity loss value of 0.358, which proves that the MIMO antenna shows good diversity performance. The antenna has a bandwidth of 8.6 GHz and a fractional bandwidth of 33% in the lower band and 56% in the higher band.

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Authors and Affiliations

  1. Department of Communication Engineering, School of Electronics Engineering, VIT University, Vellore, India

    G. Irene & A. Rajesh

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  1. G. Irene
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  2. A. Rajesh
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Correspondence to G. Irene.

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Irene, G., Rajesh, A. A dual-polarized UWB–MIMO antenna with IEEE 802.11ac band-notched characteristics using split-ring resonator. J Comput Electron 17, 1090–1098 (2018). https://doi.org/10.1007/s10825-018-1213-x

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  • DOI: https://doi.org/10.1007/s10825-018-1213-x

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