Document Type : Reseach Article
Authors
1 Department of Electrical Engineering, Islamic Azad University, Urmia Branch, Urmia 63896-57169, Iran; Microwave and Antenna Research Center, Islamic Azad University, Urmia Branch, Urmia 63896-57169, Iran
2 Department of Electrical Engineering, Naghadeh Branch, Islamic Azad University, Naghadeh , Iran
Abstract
This study presents a four-element compact Multi-Input Multi-Output antenna with enhanced isolation for applications with three bands. The four port antenna elements have hook-shape multiband monopole elements with 50 Ω microstrip feed line and placed so that they are perpendicular to one another to enhance the act of the MIMO system. Simulation and measurement consequences demonstrate that the antenna operates a consistent gain and radiation patterns at the major frequency bands of 2.11-2.47 GHz, 3.14-3.54 GHz and 5.15-5.85 GHz with S11<-10 dB. To verify the claimed MIMO antenna performance, data in format of radiation patterns, peak gain (4.9,5.2,5.8 dB), diversity gain (DG) (9.95,9.92,9.92 dB), Envelope Correlation Coefficient (ECC) (0.005,0.003,0.002), TRAC, channel capacity and MEG ratio are retrieved. These specifications of the suggested antenna cause it a suitable candidate for WiMAX, Bluetooth and WLAN uses. Additionally, the suggested antenna outperformed current work by providing a superior balance of size, bandwidth, and several performance characteristics.
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