A miniaturized anechoic chamber: omnidirectional impedance matching based on truncated spatial Kramers–Kronig medium

• Main Authors: Li, Quanping, Luo, Yu, Liu, Dongjue, Gao, Yuan, Zhang, Jingjing, Ran, Lixin, Ye, Dexin
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Electrical and electronic engineering; Anechoic Chamber; Gradient Mesoscopic Structure
• Online Access: https://hdl.handle.net/10356/162389
• Institution: Nanyang Technological University

Spatial Kramers–Kronig (KK) medium provides a new platform to achieve omnidirectionally reflectionless absorption without using any gain elements. However, impedance-matched spatial KK media realized in previous experiments generally have flat geometries with large transverse dimensions. Realizing f...