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

被引：11
|
作者：
Amarasinghe, Yasith [1 ]
Mendis, Rajind [2 ]
Shrestha, Rabi [1 ]
Guerboukha, Hichem [1 ]
Taiber, Jochen [3 ]
Koch, Martin [3 ]
Mittleman, Daniel M. [1 ]
机构：
[1] Brown Univ, Sch Engn, Providence, RI 02912 USA
[2] Riverside Res, 2640 Hibiscus Way, Beavercreek, OH 45431 USA
[3] Philipps Univ Marburg, Renthof 5, D-35032 Marburg, Germany
来源：
SCIENTIFIC REPORTS | 2021年 / 11卷 / 01期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1038/s41598-021-84849-8
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The 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.
引用
收藏
页数：8
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