Design of a planar gradient-index dielectric lens for arbitrary point-to-point beam focusing using critical-angle theory
Mohammad Mahdi Taskhiri, Mohammad Moradi, Saeed Fakhte · 2026
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Description
Mohammad Mahdi Taskhiri and two colleagues designed in 2026 a flat graded dielectric lens that focuses beams between any two points, using critical-angle theory. Unlike curved lenses, the flat design steers beams and controls wavefronts without moving parts, deriving its index profile by maths.
Full-wave simulations confirmed effective focusing and improved matching in the 4 to 7 THz band. The design scales across frequencies, suiting THz imaging, new mobile links, satellite dishes, and radar where transmitter and receiver spots vary. The lens offers a low-profile option for flexible beam alignment.
Catalog record
| CREATOR | Mohammad Mahdi Taskhiri, Mohammad Moradi, Saeed Fakhte |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 33 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |