A High Gain Multi Slotted and Compact Planar Microstrip Millimeter Wave Antenna for 5G Networks

Abstract

The present scenario that demands a high data rate by the consumers in wireless communication has imposed a challenge in the present market. Therefore, millimeter wave technology is attracting the interest of researchers and industries. This paper proposes a rectangular planar microstrip antenna with slots in radiating elements as well as in the ground plane. The proposed structure has been designed, simulated, and fabricated at a center frequency of 28 GHz using 5880 RT Duroid as a substrate, which has a relative permittivity of 2.2, loss-tangent of 9 ×10−4, and thickness of 1.6 mm. By performing the simulation using HFSS Ansys Software and also fabrication and testing, the proposed design attains a maximum gain of 8.735 dBi and a frequency bandwidth of around 2.817 GHz. The impedance bandwidth response ranges from 26.755 GHz to 29.572 GHz (10.1%) below the −10 dB line of the S11 plot. The proposed antenna is compact with dimensions of 2.19 × 3.95 mm2 and has wide bandwidth along with high gain, hence is a good candidate for mm-wave applications besides several innovative antenna-based gadgets. Measured S11 and VSWR results are consistent with the simulated ones.