Development of Resistive-Ink Based Planar and Conformal Metasurfaces for RCS Reduction

Tiwari, Priyanka; Pathak, S.K.; Siju, Varsha

doi:10.1109/access.2022.3181426

Cited by 6 publications

(2 citation statements)

References 28 publications

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“…Stealth technology is one of the most promising applications for MS absorbers (MSAs) [6]. Lowering the radar cross section (RCS) of military applications is a key component of stealth technology, which is used to evade detection by hostile radar [7,8]. Multilayer structures or frequency reconfigurable lumped elements are commonly used in the development of MSA for RCS reduction in broadband [9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Transparent conformal metasurface absorber for ultrawideband radar cross section reduction

Khan,

Majeed,

Zahra

et al. 2024

J. Phys. D: Appl. Phys.

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Flexible metasurface based absorbers have gained significant importance in recent years due to their possible use in non-planar radar stealth applications, however, their narrow bandwidth and insensitivity to incidence angles limit their potential use. In this work, we present an ultrawideband and angular insensitive metasurface absorber based on indium tin oxide (ITO), polyethyleneterephthalate (PET), and polyvinyl chloride (PVC), that is both transparent and flexible. Broad-spectrum absorption can be maximized by using ITO with modest sheet resistance upon interaction with electromagnetic (EM) waves. To further validate the absorption performance, the RCS characteristics are investigated. The results indicate that over 10 dB RCS reduction is realized across an ultra-wide frequency range of 13.30– 39.76 GHz, with relative bandwidth up to 100% for planar metasurface under linearly (LP) and circularly (CP) polarized incidence EM waves. Furthermore, the RCS reduction performance of a metasurface is well maintained in the abovementioned frequency band when it is bent with various bending angles. The proposed metasurface is a promising contender for practical applications in microwave stealth technology due to its additional advantages of visible transparency, mechanical flexibility, low profile, outstanding angle stability, and polarization insensitivity.

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Section: Introductionmentioning

confidence: 99%

Transparent conformal metasurface absorber for ultrawideband radar cross section reduction

Khan,

Majeed,

Zahra

et al. 2024

J. Phys. D: Appl. Phys.

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“…Thus, flexible and nonplanar metasurfaces offer researchers a new avenue of study and have garnered considerable interest. Recently, a few efforts aimed at lowering the RCS of conformal structures have been published in the literature [31][32][33][34]. Nevertheless, these metasurfaces are restricted to a single functionality or working band that restricts their use in modern-day compact devices.…”

Section: Introductionmentioning

confidence: 99%

A conformal coding metasurface for dual polarization conversion and radar cross section (RCS) reduction

Khan,

Zhang,

Liang

et al. 2023

J. Opt.

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Integrated meta-devices are the need of modern stealth application systems and have recently received a great deal of attention. Most studies have concentrated on the physics and structural design of planar metasurfaces, while conformal design that is suitable for arbitrarily curved surfaces has been rarely discussed. In this study, a conformal polarization-independent 1-bit coding metasurface (CM) is proposed. A fundamental element of a proposed CM is firstly designed which converts the linearly polarized incident electromagnetic (EM) wave into its orthogonal equivalent at 8.53-11.63 and 18.67-22.34 GHz with a polarization-conversion-ratio (PCR) of more than 90%, and enables linear-to-circular polarization conversion from 12.40 to 17.56 GHz. Next, the basic element is rotated by 90° to generate another element with a phase difference of π between them. Both these elements are distributed in an array using a random aperiodic coding sequence to form 1-bit CM for RCS reduction. More than 10 dB RCS reduction for arbitrarily polarized waves has been realized in dual frequency bands ranging 8.75–11.22 and 19.10–21.20 GHz, for planar as well as with conformal structures. A prototype is fabricated, and the experiments show a good agreement with simulated results. Potential applications of the proposed design include reflector antennas, radar, satellite communication, and stealth technology.

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Resistive ink based polarization and incident angle independent wideband absorber for RCS reduction at KU and K band

Sandiman,

Mishra

2024

Optik

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Development of Resistive-Ink Based Planar and Conformal Metasurfaces for RCS Reduction

Cited by 6 publications

References 28 publications

Transparent conformal metasurface absorber for ultrawideband radar cross section reduction

Transparent conformal metasurface absorber for ultrawideband radar cross section reduction

A conformal coding metasurface for dual polarization conversion and radar cross section (RCS) reduction

Resistive ink based polarization and incident angle independent wideband absorber for RCS reduction at KU and K band

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