In the present work Aperture Coupled Feed (ACF) microstrip patch antenna for 5G communication is proposed. The proposed antenna has a very compact size of 2.2λg×2.2λg×0.3λg (mm3), it is printed on Rogers RT Duroid 5880 with Ꜫr =2.2. The antenna having two vertical layer of 0.8 mm separated by air gap of 0.035 mm. The upper edge of substrate has a circular ring patch working as radiator whereas bottom having no metallization. Upper portion of lower substrate has plus shape slot and at bottom is a rectangular feed line acting as feeder to patch antenna. The antenna operatable from 36.84 GHz to 46.78 GHz and having an operating frequency of 38.40 GHz. The overall B.W% achieved is 25.91% and peak gain observed to be 7.32 dB. The measured results are in close agreement with the simulated one. Prior to approaching ACF technique, a conventional microstrip patch antenna with circular radiator with size of 2.2λg×2.2λg×0.15λg (mm3), printed on single PCB of same material was considered. The antenna gets operatable from 33.07 GHz to 39.5 GHz and resonating at 38.02 GHz. The overall B.W% achieved is 17.10% and peak gain of 8.1 dB. Both antennas are good candidature for 5G Communications.
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