Multiband Dual-Layer Microstrip Patch Antenna for 5G Wireless Applications

Abstract

A microstrip patch antenna (MPA) is compatible with 5G wireless applications due to its lightweight, compact and conformal shape, small volume, and minimal susceptibility to manufacturing tolerances. In the past few years, communication systems have frequently required multiband antennas to prevent the use of several antennas. Here, a stacked microstrip antenna with coaxial probe feed is proposed, and its multiband characteristics are studied for different 5G applications. For 5G applications, the proposed antenna works effectively in the frequency range of 0–10GHz. The variations in the shapes of the stacked microstrip patch antenna, such as circle, pentagon, hexagon, and octagon, are investigated, and it is observed that there is multi-resonance with decreasing lower resonance frequency as the shape varies. Here, two-layer geometry is used with one driving patch and another parasitic patch. This design covers a frequency range from 2.7 to 9.6 GHz with a gain of 9 dB, directivity of 13 dBi, and radiation efficiency of up to 75%. The proposed structure is simulated on IE3D Zealand software and return loss, directivity, gain, and radiation efficiency have been analyzed and measured. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.