A Design of Ultra-broad-band Miniaturized Matematerial Absorber Based on Loading Lumped Resistances

Shiqi LÜ; Jun GAO; Xiangyu CAO; Junxiang LAN; Sijia LI; Guowen ZHANG

doi:10.11999/JEIT180648

Volume 41 Issue 6

Jun. 2019

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Article Navigation > Journal of Electronics & Information Technology > 2019 > 41(6): 1330-1335

Shiqi LÜ, Jun GAO, Xiangyu CAO, Junxiang LAN, Sijia LI, Guowen ZHANG. A Design of Ultra-broad-band Miniaturized Matematerial Absorber Based on Loading Lumped Resistances[J]. Journal of Electronics & Information Technology, 2019, 41(6): 1330-1335. doi: 10.11999/JEIT180648

Citation:

Shiqi LÜ, Jun GAO, Xiangyu CAO, Junxiang LAN, Sijia LI, Guowen ZHANG. A Design of Ultra-broad-band Miniaturized Matematerial Absorber Based on Loading Lumped Resistances[J]. Journal of Electronics & Information Technology, 2019, 41(6): 1330-1335. doi: 10.11999/JEIT180648

Citation:

Shiqi LÜ, Jun GAO, Xiangyu CAO, Junxiang LAN, Sijia LI, Guowen ZHANG. A Design of Ultra-broad-band Miniaturized Matematerial Absorber Based on Loading Lumped Resistances[J]. Journal of Electronics & Information Technology, 2019, 41(6): 1330-1335. doi: 10.11999/JEIT180648

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A Design of Ultra-broad-band Miniaturized Matematerial Absorber Based on Loading Lumped Resistances

doi: 10.11999/JEIT180648

Information and Navigation College, Air Force Engineering University, Xi’an 710077, China

Funds: The National Natural Science Foundation of China (61471389, 61501494, 61671464 , 61701523), The Natural Science Foundation of Shaanxi Province (2017JM6025), The Postdoctoral Innovative Talents Support Program of China (BX20180375), The Young Talent fund of University Association for Science and Technology in Shaanxi, China (20170107)

Received Date: 2018-07-03
Rev Recd Date: 2019-01-14

Available Online: 2019-01-30

Publish Date: 2019-06-01

Abstract

Abstract

A metameterial absorber is designed, fabricated and experimentally demonstrated to realized ultra-wideband absorption based on loading lumped resistances to raise the efficiency of absorber. The proposed structure comprises of an upper absorber and an under absorber by longitudinal cascade to expand bandwidth. The analysis of equivalent circuit show that the absorber has good impedance matching in a wide frequency band and the mechanism of wave absorption is verified by current analysis. The size of the unit is only about 0.089$\lambda_ {\rm{L}}$×0.089$\lambda_ {\rm{L}}$, where $\lambda_ {\rm{L}}$ is the wavelength of the lowest frequency, and the total thickness of the absorber is only 0.078$\lambda_ {\rm{L}}$. Simulated and experimental results show that the absorber exhibits absorptivity above 90% from 2.24 GHz to 16.14 GHz, and the relative absorption bandwidth is about 151%. Measurement results show good agreement with the numerically simulated results.
- Matematerial,
- Ultra-wideband,
- Absorber,
- Lumped resistances

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References(19)

References

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