Realization of modified Luneburg lens antenna using quasi‐conformal transformation optics and additive manufacturing

2018 ◽  
Vol 61 (4) ◽  
pp. 1022-1029 ◽  
Author(s):  
Soumitra Biswas ◽  
Aric Lu ◽  
Zachary Larimore ◽  
Paul Parsons ◽  
Austin Good ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Conformal Transformation ◽  
Transformation Optics ◽  
Lens Antenna ◽  
Luneburg Lens

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
Sign in / Sign up

Export Citation Format

Share Document