A Polarization-Insensitive Band-Notched Absorber for Radar Cross Section Reduction

Sharma, Aditi; Ghosh, Saptarshi; Srivastava, Kumar Vaibhav

doi:10.1109/lawp.2020.3047643

Cited by 56 publications

(21 citation statements)

References 24 publications

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“…The multi-layer wideband circuit analogue absorber reported in [114] offers a fractional bandwidth of 114.4%. [115][116][117] report band-notched absorbers for wideband RCS reduction. A 3D metamaterial absorber made of the stand-up resistive film patch array [118] offers ultra-wideband absorption through the excitation of multiple standing wave modes, as well as from strong ohmic loss.…”

Section: Absorptive Metasurfaces For Rcs Reductionmentioning

confidence: 99%

A Review of Metasurface-Assisted RCS Reduction Techniques

Murugesan¹,

Selvan²,

Iyer³

et al. 2021

PIER B

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Section: Absorptive Metasurfaces For Rcs Reductionmentioning

confidence: 99%

A Review of Metasurface-Assisted RCS Reduction Techniques

Murugesan¹,

Selvan²,

Iyer³

et al. 2021

PIER B

Self Cite

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“…As a two-dimensional equivalence of the metamaterial, metasurface can manipulate electromagnetic (EM) waves due to its properties that conventional materials do not have, including amplitude modulation [1,2], phase [3,4] control, and polarisation [5][6][7] control. Thus, metasurface has attracted much attention these years.…”

Section: Introductionmentioning

confidence: 99%

An integrated 2‐bit metasurface array antenna with broadband low radar cross‐section covering large incident angle space

Zhang

Liu

Cao

et al. 2022

IET Microwaves Antenna & Prop

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Based on an integrated design of metasurface units and antenna elements, a 2-bit metasurface array antenna with broadband low radar cross-section (RCS) covering large incident angle space is proposed in this study. The slot width's influences on the reflective phase and element radiation performance are analysed. Furthermore, a genetic algorithm is utilised to obtain the coding pattern of the array antenna with diffuse scattering characteristics. A wideband RCS reduction is achieved from 4.2 to 9.0 GHz under xpolarised incidence, and it has oblique incident angle stability ranging from 0°to 60°d ue to non-uniform element arrangement. The current cancelation phenomenon is found to reveal the RCS reduction mechanism. Besides, the proposed antenna gain is 15.9 dBi with a peak aperture efficiency of up to 90.8%. Experimental results have a close coincidence with the simulations, which verifies the capability of the proposed design.

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“…The notched FSA can act as the ground plane in the reflection band and can absorb electromagnetic waves in the absorption band. [9][10][11][12][13][14][15][16][17] It is foreseeable that the combination of this type of structure and antenna or antenna array can achieve low RCS and enhance the radiation performance of antennas. So far, several notched FSAs have been reported.…”

Section: Introductionmentioning

confidence: 99%

“…The FSA with passband can realize low insertion loss transmission of signals in the passband while realizing broadband absorption. The notched FSA can act as the ground plane in the reflection band and can absorb electromagnetic waves in the absorption band 9–17 . It is foreseeable that the combination of this type of structure and antenna or antenna array can achieve low RCS and enhance the radiation performance of antennas.…”

Section: Introductionmentioning

confidence: 99%

Dual‐polarized frequency selective absorber with in‐band reflection response

Zhang

Yang

et al. 2022

Micro & Optical Tech Letters

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This paper proposes a frequency selective absorber with a notch reflection band. It consists of a lossy layer and a metal ground. The lossy layer is composed of the octagonal ring and meander‐line resonators connected in parallel on the same plane, which are used to obtain a wide absorption band and a notch reflection band, respectively. The simulation results show that there are two absorption bands from 2.22 to 6.8 GHz and 7.94 to 8.54 GHz, and there is a −3dB reflection band from 7.14 to 7.68 GHz. Moreover, the absorber also has the characteristics of compact structure, polarization‐independent, and angular stability. The equivalent circuit has been established and explained the performance of the proposed band‐notched absorber. The proposed band‐notched absorber is manufactured and measured, and the results are generally in good agreement with the full‐wave simulation results.

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A Polarization-Insensitive Band-Notched Absorber for Radar Cross Section Reduction

Cited by 56 publications

References 24 publications

A Review of Metasurface-Assisted RCS Reduction Techniques

A Review of Metasurface-Assisted RCS Reduction Techniques

An integrated 2‐bit metasurface array antenna with broadband low radar cross‐section covering large incident angle space

Dual‐polarized frequency selective absorber with in‐band reflection response

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