首页|Performance analysis of a sub-Rayleigh resolution distance spaced MIMO for 5G/WLAN applications
Performance analysis of a sub-Rayleigh resolution distance spaced MIMO for 5G/WLAN applications
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NSTL
Elsevier
In this article, a two element mutiple-input multiple-output (MIMO) antenna is designed to operate in 4.98 GHz to 6.04 GHz. The antenna has inter-element edge to edge spacing of 0.4 mm (approximate to 0.013Ag/0.00664 A0, where Ag and A0 are the guided and free space wavelength respectively at the lowest resonant frequency 4.98 GHz) which is extremely smaller than Rayleigh resolution distance. In spite of this, an acceptable port isolation is achieved by employing a stub in the common ground. Each radiating element comprises of etched rectangular patch having largest dimension approximate to 0.6 Ag fed with 50 ohm microstrip line. The proposed MIMO has overall size of 40 x 26 x 1.67 (approximate to 1.34 lambda g x 0.87 Ag x 0.056 Ag) mm3. Furthermore, the diversity parameters such as envelope correlation coefficient, diversity gain and mean effective gain have been studied in non-uniform medium. The total active reflection coefficient (TARC) and loss in channel capacity are found to be remain within the acceptable limit to exhibit the desired performances. The proposed antenna can be applied in 5G (below 6 GHz), WLAN and Wi-Fi bands.
NSTL
Elsevier
