TY - GEN
T1 - Design of Combined electromagnetic metamaterial absorber
AU - Chen, Xu
AU - Sun, Yingjian
AU - Qi, Kainan
AU - Yuan, Xujin
N1 - Publisher Copyright:
© 2023 SPIE.
PY - 2023
Y1 - 2023
N2 - The traditional resistive absorber, active absorber and other single structure absorbers or super surfaces have the disadvantages of narrow effective bandwidth and single adjustment mode. In order to solve this problem, a Combined structure of phase modulated active absorber and resistive absorber is proposed in this study to improve the broadband of scattering suppression and enrich the effect of adjustment methods, and its design method is described. Through reasonable optimization of the two components, the effects are overlapped and the camouflage effect is enhanced. The designed structure can achieve a scattering suppression effect of less than - 10dB at a bandwidth of 3.2GHz to 18GHz, where the phase modulation frequency band is greater than 4GHz. This structure has the same adjustment effect on TE and TM waves, and the adjustment effect is quite similar under the incidence of circularly polarized electromagnetic waves. The structure also has the structural advantage of low thickness, which is more suitable for practical applications. It has great application potential in electromagnetic compatibility, energy absorption, object camouflage.
AB - The traditional resistive absorber, active absorber and other single structure absorbers or super surfaces have the disadvantages of narrow effective bandwidth and single adjustment mode. In order to solve this problem, a Combined structure of phase modulated active absorber and resistive absorber is proposed in this study to improve the broadband of scattering suppression and enrich the effect of adjustment methods, and its design method is described. Through reasonable optimization of the two components, the effects are overlapped and the camouflage effect is enhanced. The designed structure can achieve a scattering suppression effect of less than - 10dB at a bandwidth of 3.2GHz to 18GHz, where the phase modulation frequency band is greater than 4GHz. This structure has the same adjustment effect on TE and TM waves, and the adjustment effect is quite similar under the incidence of circularly polarized electromagnetic waves. The structure also has the structural advantage of low thickness, which is more suitable for practical applications. It has great application potential in electromagnetic compatibility, energy absorption, object camouflage.
KW - Combined metamaterials
KW - active metamaterials
KW - bandwidth expansion
KW - ultrabroadband absorber
UR - http://www.scopus.com/inward/record.url?scp=85171370088&partnerID=8YFLogxK
U2 - 10.1117/12.2686863
DO - 10.1117/12.2686863
M3 - Conference contribution
AN - SCOPUS:85171370088
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - International Conference on Optoelectronic Information and Functional Materials, OIFM 2023
A2 - Fu, Yabo
A2 - Prakash, Kolla Bhanu
PB - SPIE
T2 - 2023 International Conference on Optoelectronic Information and Functional Materials, OIFM 2023
Y2 - 14 April 2023 through 16 April 2023
ER -