A SMALL CONFORMAL WEARABLE FOUR-PORT WIDE BAND ANTENNA for 5G APPLICATIONS

Abstract

ABSTRACTThis article proposes a small multiple-input multiple-output (MIMO) wearable antenna system with four coplanar waveguide (CPW)-fed antennas operating in the New Radio band 79 (4.4 – 5 GHz) applications. The suggested MIMO antenna system consists of four identical hexagonal shaped monopole radiators, each is printed on polymide substrate with the size of 1.33 λ0 x 1.03 λ0 where, λ0 is the wave length at centre frequency 4.5 GHz. By placing four antenna elements in orthogonal arrangements independent radiation pattern is achieved thereby increasing isolation better than 17 dB. Specifically, no dedicated mechanism has been introduced to obtain the substantial isolation. All the antenna elements in the MIMO arrangement have broadband operation resonating between 4.4 – 5 GHz covering n79 (New Radio band) 5 G applications. The proposed antenna has a peak gain around 3.8 – 4dBi over the operating frequency with radiation efficiency ranging from 88 to 90%. Since, flexible substrate is used in the design, conformability of the antenna has been verified by performing bending analysis. The MIMO antenna provides better measured results which consistent with the simulated results, therefore the antenna explored in this research could be the better candidate for 5 G conformal and wearable applications.DisclaimerAs a service to authors and researchers we are providing this version of an accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proofs will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to these versions also.