4.5 Article

Designed band-pass frequency selective surfaces with thermal transparency

期刊

PHYSICS LETTERS A
卷 406, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.physleta.2021.127459

关键词

Ku-band; Band-pass frequency selective surfaces; Thermal transparency; Thermal metamaterials

资金

  1. Zhejiang Provincial Natural Science Funds of China [LZ20E050003]
  2. National Natural Science Foundation of China (NSFC) [U1609209, 51375348]
  3. Wenzhou Science and Technology Projects [H2020003]

向作者/读者索取更多资源

Band-pass frequency selective surfaces are widely used for radar electromagnetic wave detection stealth performance, and the challenge lies in empowering both microwave frequency and thermal transparency. By introducing a periodic filled region, thermal transparency can be achieved, and the designed FSSs have less-distortion frequency response and thermal transparency, providing an effective approach for microwave and infrared camouflage design and fabrication.
Band-pass frequency selective surfaces (FSSs) have been wildly used to achieve stealth performance for radar electromagnetic wave detection. However, the existence of air slots will lower the effective thermal conductivity of the FSS structure that distorts the external temperature fieldand makes the FSS infrared visible. An interesting and practical challenge for the development of FSSs is the feasibility of empowerment of both microwave frequency and thermal transparency. Based on the mechanism of periodic interparticle interaction, a periodic filled region is introduced to achieve thermal transparency. The design principle is discussed in detail, and typical Jerusalem cross shape aperture samples are selected for modelingsimulation and experimental verification. The results of frequency response and heat transfer characteristics confirm the designed band-pass FSSs have less-distortion frequency response and thermal transparency, which provide an effective approach for the design and fabrication of microwave and infrared camouflage with easy implementation in practical applications. (C) 2021 Elsevier B.V. All rights reserved.

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