Design of High-Gain Lens Antenna by Gradient-Index Metamaterials Using Transformation Optics

2012 ◽  
Vol 60 (9) ◽  
pp. 4074-4081 ◽  
Author(s):  
Iman Aghanejad ◽  
Habibollah Abiri ◽  
Alireza Yahaghi
Keyword(s):  
High Gain ◽  
Transformation Optics ◽  
Gradient Index ◽  
Lens Antenna

A high-gain lens antenna based on transformation optics

2012 ◽  
Author(s):  
Iman Aghanejad ◽  
Habibollah Abiri ◽  
Alireza Yahaghi ◽  
Reza Ramezani
Keyword(s):  
High Gain ◽  
Transformation Optics ◽  
Lens Antenna

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.

Research progress of transformation optics lens antenna

2017 ◽  
Vol 10 (2) ◽  
pp. 164-175 ◽  
Author(s):  
曹尚文 CAO Shang-wen ◽  
周永江 ZHOU Yong-jiang ◽  
程海峰 CHENG Hai-feng
Keyword(s):  
Transformation Optics ◽  
Research Progress ◽  
Lens Antenna

High-Gain Circularly Polarized Lens Antenna for Terahertz Applications

2019 ◽  
Vol 18 (5) ◽  
pp. 921-925 ◽  
Author(s):  
Geng Bo Wu ◽  
Yuan-Song Zeng ◽  
Ka Fai Chan ◽  
Shi-Wei Qu ◽  
Chi Hou Chan
Keyword(s):  
High Gain ◽  
Lens Antenna ◽  
Circularly Polarized ◽  
Terahertz Applications
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