Dual-band microstrip antenna for the fifth generation indoor/outdoor wireless applications

摘要

In this paper a dual band monopole antenna with omnidirectional radiation pattern suitable for indoor and outdoor fifth generation (5G) applications at 28 GHz and 60 GHz systems is developed. The proposed monopole antenna is built up using a microstrip of two rectangular patches and a T-shaped folded patch. The analysis and optimization processes throughout this paper are carried out using a High Frequency Surface Structure (HFSS) that uses the Finite Element Method (FEM) numerical method, and CST Microwave Studio that uses the Finite Integral Technique (FIT) numerical method. Good agreement between the two methods is obtained. The bandwidth of the lower and upper bands is about 1.44 GHz (5.1%) and 39.24 GHz (60.6%), respectively. The antenna directivity is about 2.28 dBi at 28 GHz with a total efficiency of 93% and about 3.414 dBi with a total efficiency of 97.5% at 60 GHz.