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|Title:||Terahertz focusing reflectarray with enhanced bandwidth|
|Citation:||International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz, 2018, vol.2018-September|
|Series/Report no.:||International Conference on Infrared Millimeter and Terahertz Waves|
|Conference Name:||International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (9 Sep 2018 - 14 Sep 2018 : Nagoya, Japan)|
|Xiaolong You, Christophe Fumeaux, and Withawat Withayachumnankul|
|Abstract:||This paper presents a planar terahertz reflectarray that employs stub-loaded square patches on a grounded substrate for efficient beam focusing at 1 THz. The proposed patch element can achieve a nearly linear and smooth phase response at the operating frequency through variation of its stub length. This feature is of great importance to the bandwidth performance of a reflectarray made of such elements. By the principle of reciprocity, the designed focusing device can also function as a collimator. The numerical results confirm the focusing capability of the designed reflectarray with a 3-dB bandwidth of 0.23 THz at 1 THz. This design can achieve over twice the operation bandwidth compared with existing designs.|
|Rights:||© 2018 IEEE|
|Appears in Collections:||Aurora harvest 3|
Electrical and Electronic Engineering publications
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