The Meta Quest 3S is still widely considered the best value in VR gaming. Not only is it priced hundreds less than most other ...

The fresnel zone lens (FZL) in this research work is designed using high-density polyethylene (HDPE). HDPE is characterized for the 28 GHz frequency by making i ...

In this article, a multilayer lens antenna with low profile characteristics is proposed for 220 GHz terahertz multibeam applications. The lens structure consists of an inverted Fresnel lens and a ...