A Constant Gain and Miniaturized Antipodal Vivaldi Antenna for 5G Communication Applications

This paper proposes a stable gain and compact Antipodal Vivaldi Antenna (AVA) for 38 GHz band of 5G communication. A novel AVA is designed to provide constant gain, high front back ratio (FBR), very efficiency. The performance the proposed enhanced with help dielectric lens (DL) corrugations. rectangular-shaped DL incorporated in conventional (CAVA) enhance its up 1 dBi bandwidth by 1.8 GHz. Next, rectangular corrugations are implemented CAVA (CAVA-L) further improve bandwidth. (AVA-LC) gives 8.2 9 dBi. AVA-LC operates from 34 45 frequency which covers (37.5 43.5 GHz) applications. Further, presented mitigates lobe sidelobe levels, resulting FBR efficiency improvement. range 12.2 22 dB, 99%, almost constant. fabricated on Roger’s RT/duroid 5880 substrate, it tested verify simulated results. an improved FBR, excellent efficiency, radiation patterns suitable devices.