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Wideband antenna design using Superstates for mm- wave 5G applications

Aafreen Khan, Anwar Ahmad, Maksud Alam

Abstract


In this article circular patch antenna has been proposed using the superstates for mm-wave 5G applications. The proposed structure has been designed on the 5.8×5.8x0.8 mm 3 RT-duroide substrate of permittivity. To improve the bandwidth and other performance characteristics, like gain and radiation efficiency of antennas, different techniques have been utilized. First technique that has been used is the slot loading in which three open ended slots on the circular patch are etched out which is providing the good bandwidth enhancement. Further enhancement in the bandwidth has been achieved by implementing another method of DGS structure along with the slotted patch. To obtain DGS the T shape and L shape slot have been etched in the ground plane. Lastly, the improved antenna performance has been achieved by the addition of superstrate using taconic-10 substrate of thickness of 0.25 mm above the patch at distance d=2.3mm. This is enhancing the gain by large amount along with the improvement in bandwidth. Designed antenna is covering the band (39.959-50.175) GHz, the maximum gain of 5dBi and radiation efficiency of 97%. The proposed antenna structure provides the AR<3dB bandwidth of 755MHz covering the band (40.330-41.085) GHz with the right-handed polarization characteristics. The proposed antenna has been designed using Ansys HFSS simulator on the Rogers RT duroid substrate of thickness 0.8 mm. The double substrate implementation along with the slots on the patch and at the ground makes the antenna novel and useful for the millimeter wave 5G applications.


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References


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DOI: https://doi.org/10.37628/jscrs.v7i2.1648

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