Barzegar-Parizi S. Refractive Index Sensor Based on Narrowband Metamaterial Electromagnetic Absorber at Microwave and THz Frequencies. Journal of Iranian Association of Electrical and Electronics Engineers 2023; 20 (3) :89-96
URL:
http://jiaeee.com/article-1-1361-en.html
Department of Electrical Engineering, Sirjan University of Technology, Sirjan
Abstract: (806 Views)
In this paper, a perfect metamaterial electromagnetic absorber with a simple design is presented at microwave and terahertz frequencies. The designed absorber includes a metamaterial layer including thick cross hollow deposited on substrate terminated by a metallic back reflector. The perfect absorption can be achieved with proper design of the dimensions of the structure at the microwave and terahertz frequencies. As an application, the proposed absorber can be used as a sensor to detect different refractive indices. The results show that the proposed refractive index sensor can be utilized to detect the level of glucose in water with a sensitivity of 10.83 Gigahertz per refractive unit (GHz/RIU) and Figure of Merit (FOM) of 43.4 (1/RIU). However, the proposed structure can be used to diagnose other biomedical features as well.
Type of Article:
Research |
Subject:
Communication Received: 2021/08/9 | Accepted: 2023/02/14 | Published: 2023/05/24