High gain of 28 GHz transparent antenna for 5G NR Networks

A new compact transparent patch antenna for 5G new radio (NR) is presented in this paper. Small rectangles are cut out from the patch to produce the desired frequency 28 GHz. The AgHT-8 material is used to from the radiator and the ground of the antenna while the glass is used as a substrate with a relative permittivity of ε r = 4.6, tanδ = 0.0036 and thickness of 1.1mm. The suggested antenna occupies a small footprint of only 104,72 mm2 (11mm x 9.52 mm). The frequency bandwidth operation of the antenna is 3.624GHz (26.369 - 29.993 GHz) centered at 28GHz, the efficiency is 76% and the gain is about 5.1 dBi. The excellent performance allows the transparent antenna suitable for 5G applications.