An ultra-thin ultra-broadband microwave absorber for radar stealth

Qu, Zeng; Hao, Jingxian; Jing, Huihui; Wei, Yiqing; Duan, Junping; Wang, Jiayun; Zhang, Binzhen

doi:10.1007/s42114-022-00429-y

Cited by 32 publications

(12 citation statements)

References 37 publications

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“…Stealth devices are of great significance in the military field, and current radar and IR stealth devices have been widely developed. [585][586][587] Considering the actual military applications, however, the limitations of a single stealth function are relatively large, which requires compatibility with both that is to achieve radar-IR dual stealth. The inability to attain dual stealth function in broadband is also a drawback for the resonant devices that combine two stealth characteristics of multi-band radar-IR compatible stealth.…”

Section: Radar-ir Dual Stealthmentioning

confidence: 99%

Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

Wang

Duan

et al. 2023

Adv Funct Materials

149

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Metamaterial absorbers have been widely studied and continuously concerned owing to their excellent resonance features of ultra-thin thickness, light-weight, and high absorbance. Their applications, however, are typically restricted by the intrinsic dispersion of materials and strong resonant features of patterned arrays (mainly referring to narrow absorption bandwidth). It is, therefore essential to reassert the principles of building broadband metamaterial absorbers (BMAs). Herein, the research progress of BMAs from principles, design strategies, tunable properties to functional applications are comprehensively and deeply summarized. Physical principles behind broadband absorption are briefly discussed, typical design strategies in realizing broadband absorption are further emphasized, such as top-down lithography, bottom-up self-assembly, and emerging 3D printing technology. Diversified active components choices, including optical response, temperature response, electrical response, magnetic response, mechanical response, and multi-parameter responses, are reviewed in achieving dynamically tuned broadband absorption. Following this, the achievements of various interdisciplinary applications for BMAs in energy-harvesting, photodetectors, radar-IR dual stealth, bolometers, noise absorbing, imaging, and fabric wearable are summarized. Finally, the challenges and perspectives for future development of BMAs are discussed.

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Section: Radar-ir Dual Stealthmentioning

confidence: 99%

Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

Wang

Duan

et al. 2023

Adv Funct Materials

149

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“…As the fifth-generation (5G) communication era comes, wireless communication technology and radar system have been developed rapidly in our life. [1][2][3][4][5][6][7] However, it inevitably produces a great deal of electromagnetic pollution. As a result, material that can absorb efficiently the microwave has been developed continuously.…”

Section: Introductionmentioning

confidence: 99%

“…As the fifth‐generation (5G) communication era comes, wireless communication technology and radar system have been developed rapidly in our life 1–7 . However, it inevitably produces a great deal of electromagnetic pollution.…”

Section: Introductionmentioning

confidence: 99%

Impedance matching optimization of hierarchical carbon fiber@MoS₂@PANI nanocomposite with core‐sheath structure for achieving excellent microwave absorption

Hu,

Zhou,

2023

Polymers for Advanced Techs

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Carbon fiber (CF) has been extensively used in the research of microwave absorption owning to its excellent performance, but it also faces a series of problems such as impedance mismatch and low absorption intensity. The core‐sheath microstructure with CF as the inner core is constructed to solve the above issues by the introduction of other sheath layers. In this work, the MoS2 sheath and polyaniline (PANI) sheath are successively introduced into the CF matrix to obtain a hierarchical CF@MoS2@PANI nanocomposite with core‐sheath structure through a straightforward hydrothermal method and in‐situ polymerization. The obtained CF@MoS2@PANI nanocomposite exhibit the minimum reflection loss value of −42.23 dB at 10.11 GHz while the thickness is 2.5 mm, much higher than those of pure CF (below −10 dB) and CF@MoS2 nanocomposite (−25.60 dB). Moreover, the distinctive hierarchical core‐sheath structure contributes to providing more active sites, prolonging the transmission path of electromagnetic waves, and forming heterogeneous interfaces. Consequently, the electromagnetic wave attenuation mechanism of CF@MoS2@PANI nanocomposite is attributed to a synergistic effect of conductive loss, multiple reflection/scattering, dipole polarization, and interface polarization. This work offers an effective and promising strategy to design a three‐dimensional hierarchical core‐sheath microstructure for the development of composite absorbers.

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“…RCS is a serious issue in military applications since stealth technology makes it difficult to be detected. However, other more techniques, including frequency selective surfaces, metamaterial absorbers, electromagnetic band gaps (EBG), etc., have been proposed in the literature to reduce RCS [1][2][3][4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…Ultra-thin ultrawide-band (UWB) Metasurface absorber has been designed on polyethylene terephthalate (PET) and a glass fibre dielectric layer (FR-4). The metasurface absorber (MSA) covers the frequency range 4-12GHz having more than 80% absorbance and wide 40 o polarization stability for electromagnetic interference and RCS reduction in stealth applications [1]. Faith Tutar, et.al [2] reflection mode metasurface based linear to circular polarization converter in C and X-band has been designed on FR-4 substrate with 2.8mm height.…”

Section: Introductionmentioning

confidence: 99%

Metasurface Instrumented High Gain and Low RCS X-Band Circularly Polarized MIMO Antenna for IoT Over Satellite Application

Saxena¹,

Kumar²,

Chintakindi³

et al. 2023

Preprint

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In this article, an X-band metasurface is designed and this metasurface array is used as an instrument to increase gain & reduce radar cross section of circularly polarized X-band MIMO antenna through super-state and under-state positioning of array respectively. Absorbance of the metasurface to the intended frequency band (i.e., 6.75GHz-14.0GHz) is more than 90.0%. Metasurface is designed on FR-4 substrate height (Hs) 3.1mm with unit cell dimension of 7.95×7.95×3.1mm3 (0.265λo×0.265λo×0.103λo) at 10GHz. The proposed antenna is also designed on FR-4 substrate with dimensions of 29×23×1.6mm3 (0.966λo×0.766λo×0.0.053λo) at 10GHz. The super-state and under-state positioning of metasurface array over MIMO antenna is increased the gain (peak gain 12.6dBi at 11GHz) and reduced the mono-static RCS (18dBm2) across the band respectively. The characteristic of the antenna is likewise verified by its s-parameters, radiating efficiency, gain and diversity parameters for the intended band. The simulated & measured results are having better harmony which exhibits suitability of the proposed designs for IoT over satellite, military application, and also useful to identify blood clouting in CT-scan application.

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An ultra-thin ultra-broadband microwave absorber for radar stealth

Cited by 32 publications

References 37 publications

Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

Impedance matching optimization of hierarchical carbon fiber@MoS₂@PANI nanocomposite with core‐sheath structure for achieving excellent microwave absorption

Metasurface Instrumented High Gain and Low RCS X-Band Circularly Polarized MIMO Antenna for IoT Over Satellite Application

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An ultra-thin ultra-broadband microwave absorber for radar stealth

Cited by 32 publications

References 37 publications

Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

Review of Broadband Metamaterial Absorbers: From Principles, Design Strategies, and Tunable Properties to Functional Applications

Impedance matching optimization of hierarchical carbon fiber@MoS2@PANI nanocomposite with core‐sheath structure for achieving excellent microwave absorption

Metasurface Instrumented High Gain and Low RCS X-Band Circularly Polarized MIMO Antenna for IoT Over Satellite Application

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Impedance matching optimization of hierarchical carbon fiber@MoS₂@PANI nanocomposite with core‐sheath structure for achieving excellent microwave absorption