Bespoke Lenses Based on Quasi-Conformal Transformation Optics Technique

2017 ◽  
Vol 65 (5) ◽  
pp. 2256-2264 ◽  
Author(s):  
Mahsa Ebrahimpouri ◽  
Oscar Quevedo-Teruel
Keyword(s):  
Conformal Transformation ◽  
Transformation Optics

scholarly journals H-plane horn antenna with enhanced directivity using conformal transformation optics

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hossein Eskandari ◽  
Juan Luis Albadalejo-Lijarcio ◽  
Oskar Zetterstrom ◽  
Tomáš Tyc ◽  
Oscar Quevedo-Teruel
Keyword(s):  
Conformal Transformation ◽  
Phase Error ◽  
Three Dimensional ◽  
Physical Space ◽  
Horn Antenna ◽  
High Gain ◽  
Transformation Optics ◽  
Graded Index ◽  
Low Profile ◽  
Dielectric Lens

AbstractConformal transformation optics is employed to enhance an H-plane horn’s directivity by designing a graded-index all-dielectric lens. The transformation is applied so that the phase error at the aperture is gradually eliminated inside the lens, leading to a low-profile high-gain lens antenna. The physical space shape is modified such that singular index values are avoided, and the optical path inside the lens is rescaled to eliminate superluminal regions. A prototype of the lens is fabricated using three-dimensional printing. The measurement results show that the realized gain of an H-plane horn antenna can be improved by 1.5–2.4 dB compared to a reference H-plane horn.

Quasi-conformal transformation optics with elasto-electromagnetic metamaterials: Design algorithm

2015 ◽  
Vol 107 (2) ◽  
pp. 021908 ◽  
Author(s):  
Dongheok Shin ◽  
Junhyun Kim ◽  
Ilsung Seo ◽  
Kyoungsik Kim
Keyword(s):  
Conformal Transformation ◽  
Transformation Optics ◽  
Design Algorithm ◽  
Electromagnetic Metamaterials

Polarization Splitter Design with Quasi-Conformal Transformation Optics

2017 ◽  
Author(s):  
Poliane A. Teixeira ◽  
Daniely G. Silva ◽  
Lucas H. Gabrielli ◽  
Mateus A. F. C. Junqueira ◽  
Danilo H. Spadoti
Keyword(s):  
Conformal Transformation ◽  
Transformation Optics ◽  
Polarization Splitter

scholarly journals Design of conformal lens by drilling holes materials using quasi-conformal transformation optics

2014 ◽  
Vol 22 (21) ◽  
pp. 25455 ◽  
Author(s):  
Shouliang Li ◽  
Zhan Zhang ◽  
Junhong Wang ◽  
Xianshi He
Keyword(s):  
Conformal Transformation ◽  
Transformation Optics

Conformal transformation optics

2014 ◽  
Vol 9 (1) ◽  
pp. 15-23 ◽  
Author(s):  
Lin Xu ◽  
Huanyang Chen
Keyword(s):  
Conformal Transformation ◽  
Transformation Optics
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