电子学报2024，Vol.52Issue(2)：421-427,7.DOI:10.12263/DZXB.20220125
覆盖整个UHF频段的吸波结构
An Absorbing Structure Covering the Whole UHF Band
吴昌英 1高阳 1马承乾 1冯富森林1
作者信息
- 1. 西北工业大学电子信息学院,陕西西安 710072
- 折叠
摘要
Abstract
An ultra-wideband absorbing structure coving the whole ultra-high frequency(UHF)band is provided in this paper.The permeabilities of magnetic materials increase with the decrease of frequency.Therefore,the absorber is less susceptible to frequency.The performance of the absorber at low frequencies is further improved by introducing resistive loss.The permittivity and permeability of carbonyl iron powder are measured by vector network analyzer,the equivalent circuit parameters are optimized by genetic algorithm,and the structure parameters are optimized by full-wave EM simula-tor,all in whole UHF band.The absorber is measured at low frequencies.The measured,simulated,and equivalent circuit results show a good agreement.The absorber presents an absorption rate over 90%within a fractional absorption band-width over 164%,and it has a thickness of 0.029λ at the lowest frequency.关键词
吸波结构/UHF频段/超宽带/羰基铁粉/遗传算法Key words
absorbing structure/UHF band/ultra-wideband/carbonyl iron powder/genetic algorithm分类
信息技术与安全科学引用本文复制引用
吴昌英,高阳,马承乾,冯富森林..覆盖整个UHF频段的吸波结构[J].电子学报,2024,52(2):421-427,7.
