Design, Simulation, and fabrication of a MIMO2 ×2antenna with Ultera-wide impedance Bandwidth and optimal impedance matching
Subject Areas : Electrical engineering (electronics, telecommunications, power, control)
Mohammad hossein Montazerifar
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Keywords: Simulation, Mimo 2×2antenna, CPW feeding method ,
Abstract :
The objective of this study is to design, simulate, and facilitate a 2×2MIMO antenna with an ultera-wide impedance bandwidth and optimal impedance machine. In this research, a super-UWB 2×2 MIMO antenna with dimensions of 84×42 mm*2 and an impedance bandwidth ranging from 2.17 GHz to 24.85GHzisproposed .Given the wide frequency bands achieved, the design education antenna is suitable for use in portable devices for various wireless communications systems such as IEEE 802.11a/b/g/n,LTE, WiFi, BLUEtooth as well as the xband, ku-band,and more. The antenna consists of two circular monopole elements. each incorporated slots and cuts to enhance performance. Both antenna elements are fed via a 50-ohm Copland waveguide (CPW).To achieve high Isolation (Low mutual coupling)between the two elements. The feed lines are arranged orthogonal ly ,and a rectangular parasitic strip is introduced between them .After simulation, a prototype of the proposed design was fabrication, and it's parameters were measured.The measurement results show that the proposed MIMO antenna exhibit S an impedance bandwidth of 2.17-24.85GHz,an isolation of 21.6 dB,a maximum gain of 6.9 dB,and an envelope correlation coefficient (ECC)below 0.005.
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