Improved Radiation Characteristics of 1×3 Series Fed MSA Array using Metamaterials for 5G Application

Primarily, a 1×3 series fed microstrip planar antenna (MSA) array of inset feeding is realized to enhance the radiation characteristics. Next, the characteristics of MSA array stacked with superstrate of rectangular metamaterial (MTM) elements, which improve the peak gain, directionality, and efficiency for Ka-band application is designed. An antenna with a substrate of 0.526λ
0
× 2.45λ
0
mm
²
(or) 5 × 23.34 mm
²
of thickness 0.254 mm designed on a RT Duriod. By using a superstrate of 5 rectangular MTM elements, of RT Duriod substrate of thickness 0.8 mm over the proposed 1×3 series fed MSA array as a foam thickness of (λ/4) or 2.38 mm, a gain improved from 13.26 dBi to 27.11 dBi is achieved at 28 GHz for 5G application.