Wideband directive emission based on hyperbolic metamaterials

Mina Ren; Yanhong Liu; Shengwang Yu; Lijuan Dong; Lixiang Liu; Fusheng Deng; Yunlong Shi

doi:10.1140/epjp/i2019-12745-4

EPJ

Wideband directive emission based on hyperbolic metamaterials

Mina Ren¹^,2, Yanhong Liu²^,1^*, Shengwang Yu¹, Lijuan Dong²^,1, Lixiang Liu²^,1, Fusheng Deng² and Yunlong Shi²

¹ School of Materials Science and Engineering, Taiyuan University of Technology, 030024, Taiyuan, China
² Shanxi Provincial Key Laboratory of Microstructure Electromagnetic Functional Materials, Shanxi Datong University, 037009, Datong, China

Received: 29 September 2018
Accepted: 15 April 2019
Published online: 27 June 2019

Abstract

Wideband directive emission properties operating in the canalization regime are found in hyperbolic metamaterials (HMMs). Based on the two-dimensional composite right/left-handed transmission line (CRLH TL) with lumped elements, the proposed HMM exhibits a very flat wave vector iso-frequency dispersion diagram over a wide frequency range. The emitted electromagnetic energy is concentrated around the normal of the HMM slab for all incident angles, and a subwavelength focusing is thus achieved. Canalization-induced abnormal propagations including wideband highly directive emission and subwavelength focusing are verified experimentally in the microwave domain.

Joint Annual Meeting of the Swiss and Austrian Physical Societies
26-30 August 2019
Zurich, Switzerland

EPJ

Wideband directive emission based on hyperbolic metamaterials

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