Halloween Structured Microstrip MIMO Radiator at 5G sub-6GHz and mm-wave Frequencies

The 5th generation mobile technology standards have the guts to deliver high data rates, low latency communications, and massive device connectivity. One of the challenge in front of 5G was spectrum usage, this article was presented, different frequency bands allocated to 5G in the range of sub-6GHz and millimeter wave frequencies in various countries and for the efficient distribution of the 5G systems and in order to meet the challenge of spectrum usage, developed a dual wideband three elements MIMO radiating structure capable to operate in sub-6GHz and mm-wave bands. Primarily the single element radiator was designed on 6.4 X 6.4 X 0.25 mm
³
dimensioned Rogers/RT duroid substrate with Halloween structure incorporated patch and grounded with wide rectangular slot. The incorporation of Halloween structure was given gain enhancement and wide rectangular slot on ground was given bandwidth enhancement. The single element radiator was resonated in the band 25.18-29.39GHz with the gain of 4. 69dBi. The MIMO antenna structure was developed by extending the dimensions to S.4 X 23. SX0.25mm
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, it was capable to operate in dual bands 5.12-5.97GHz and 12.83-40.4GHz with respect to the -10dB return losses and less than -10dB isolation was observed with respect to adjacent radiators. The Maximum gain obtained over the lower band was 6. 7dBi and higher band was 17. 36dBi. The results demonstrated that the presented antenna structure is well suitable for 5G Applications.