Affiliation:
1. Indian Institute of Technology Jammu Jammu Jammu and Kashmir India
2. Indian Institute of Technology Patna Patna Bihar India
Abstract
AbstractA high‐gain digital metasurface reflectarray antenna for 5G FR‐2 band is presented in this letter. The digital metasurface reflector is composed of single‐layered phase quantized meta‐bit unit cell elements. The metabit consists of a split square integrated with a circular ring. Two discretized phase states are obtained by varying the dimensions of the split square and the circular ring, which mimic the metabit‐0 and metabit‐1, respectively. A digital metasurface reflectarray having dimensions of 5.3 5.3 operating in the frequency range of 37–39 GHz is designed, fabricated, and characterized. A linearly polarized antipodal vivaldi antenna spatially feeds the digital metasurface reflectarray. A maximum measured gain of 19.1 dBi is obtained at 38 GHz, with an aperture efficiency of 23%.
Funder
Science and Engineering Research Board
Subject
Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials