A Miniaturized Dual-Band Antenna for 5G mm-Wave Applications

This research introduces a compact microstrip antenna with dual-band capabilities, characterized by its broad bandwidth. The antenna configuration involves adjustments to the ground plane, enabling it to operate efficiently in two frequency bands. The proposed antenna operational bandwidth encompasses both the 28 and 38 GHz bands, making it suitable for millimeter wave applications within the context of 5G technology, while maintains a compact structure with dimensions of 5 x 9.2 mm
²
. The proposed design is mounted on Roger’s RT5880 laminated substrate, which has a thickness of 0.787 mm. The reduction of ground length leads to a widened bandwidth, spanning from 24.8-28.7 GHz at lower band, and from 36.2-40.8 GHz at higher band.