A Hemispherical Wide-Angle Beamsteering Near-Surface Focal-Plane Metamaterial Luneburg Lens Antenna Using Transformation-Optics

2022 ◽  
pp. 1-1
Author(s):  
Ruolei Xu ◽  
Zhi Ning Chen
Keyword(s):  
Focal Plane ◽  
Transformation Optics ◽  
Wide Angle ◽  
Lens Antenna ◽  
Near Surface ◽  
Luneburg Lens

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 Broadband wide-angle terahertz antenna based on the application of transformation optics to a Luneburg lens

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yasith Amarasinghe ◽  
Rajind Mendis ◽  
Rabi Shrestha ◽  
Hichem Guerboukha ◽  
Jochen Taiber ◽  
...  
Keyword(s):  
Beam Steering ◽  
Path Loss ◽  
High Gain ◽  
Transformation Optics ◽  
Wide Angle ◽  
Broad Bandwidth ◽  
New Device ◽  
Significant Challenge ◽  
Luneburg Lens ◽  
Very High

AbstractThe design of antennas for terahertz systems remains a significant challenge. These antennas must provide very high gain to overcome significant free-space path loss, which limits their ability to broadcast or receive a beam over a wide angular range. To circumvent this limitation, here we describe a new device concept, based on the application of quasi-conformal transformation optics to the traditional Luneburg lens. This device offers the possibility for wide-angle beam steering and beam reception over a broad bandwidth, scalable to any frequency band in the THz range.

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