A Dual Band Antipodal Vivaldi Antenna for Fifth-Generation Applications

A compact single patch antipodal Vivaldi antenna (AVA) is designed for Ka band applications. The proposed antenna is a dual band antenna and with a compact size. The antenna size is
$15\times 6\times 0.5\ \text{mm}^{\wedge}3$
and it is fabricated on Roger's RT/Duroid substrate 5880. It operates from 23.41 GHz to 31 GHz and from 35.45 GHz to above 45 GHz. Further, it provides good radiation efficiency which is in the range of 88% to 98.5%. An elliptical shape parasitic patch is used for gain and bandwidth enhancement of the conventional AVA. The proposed AVA antenna is suitable for 5G technology