Abstract
Abstract
Circulators, as passive non-reciprocal devices, have excellent potential for application in wireless communication and radar-signal processing. However, the construction of terahertz (THz)-frequency circulators is extremely difficult. Here, an electromagnetic matching model for metamaterials is proposed to support the design of a THz circulator with a wider operating bandwidth. The resulting circulator can work without an external magnetic field in the THz frequency range. The best isolation of this THz circulator is 20.9 dB, and its maximum directionality is 16.6 dB. These results validate a new method for the design of metamaterial-based THz devices.
Funder
BUCT Fund for Disciplines Construction
Fundamental Research Funds for the Central Universities
National Natural Science Foundation of China
Subject
Surfaces, Coatings and Films,Acoustics and Ultrasonics,Condensed Matter Physics,Electronic, Optical and Magnetic Materials
Cited by
6 articles.
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