Open AccessEquivalent circuit model of an ultra‐wideband frequency selective surface composite absorbing material
Author(s) -
Yu Jiaao,
Peng Shirui,
Nan Hao,
Liu Jianhao
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0220
Subject(s) - equivalent circuit , wideband , materials science , composite number , acoustics , reflection (computer programming) , transmission (telecommunications) , hexagonal crystal system , ultra wideband , tunable metamaterials , optics , electronic engineering , optoelectronics , computer science , physics , voltage , telecommunications , electrical engineering , composite material , engineering , metamaterial , chemistry , crystallography , programming language
An equivalent circuit model of double hexagonal loops frequency selective surface (FSS) was established. The formulas of LC parameters were proposed with equivalent repetition period. The reflection frequency, transmission frequency, and the location of first modal interaction null were simulated, and the results showed a good agreement in full‐wave simulation result. On this basis, an ultra‐wideband composite absorbing material (CAM) was proposed, and its equivalent circuit model was also established. A sample was fabricated and measured to verify the validity of the model. The results showed a good ultra‐wideband absorbing performance in the range of 1.9–8.9 GHz.