Wideband Polarization Conversion Metasurface for RCS Reduction of Antennas

Hong, Tao; Peng, Ke; Gu, Yue; Jiang, Wen; Gong, Shuxi

doi:10.1155/2018/2308643

Cited by 10 publications

(5 citation statements)

References 18 publications

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“…In recent years, there has been an increasing focus among researchers in the field of antenna research on reducing the RCS, alongside endeavors to expand frequency bandwidth and improve realized gain, resulting in some satisfactory progress [17,18]. The reduction of RCS in antennas plays a crucial role in achieving stealth mode in communication devices, and it also significantly influences the stealth capabilities of defense electronic equipment [19,20].…”

Section: Introductionmentioning

confidence: 99%

A High-Gain Wideband Fabry-Pérot Antenna Employing a Water-Based Frequency Selective Surface for Polarization- and RCS-Reconfigurability

Wang,

Liu,

Zhou

et al. 2024

International Journal of RF and Microwave Computer-Aided Engine

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A Fabry-Pérot (FP) antenna with wideband dual-polarization and radar cross section- (RCS-) reconfigurability adopting water-based frequency selective surface (FSS) is presented. The feed antenna is designed to switch between horizontal polarization (HP) and vertical polarization (VP) by controlling the on/off states of two PIN diodes. By optimizing the height of the FP resonant cavity, the proposed FP antenna achieves wideband and high-gain properties. In addition, the incident wave can be absorbed when the polymethyl methacrylate (PMMA) container is filled with water, which reduces the monostatic RCS. This design can be selected to be in stealth mode or radiation mode by injecting water into or extracting water from the water container. The measured results indicate that in stealth mode, the 10-dB RCS reduction band is from 4.5 GHz to 6.4 GHz, and the peak RCS reduction is 31.5 dB at 5.2 GHz. In the radiation mode, the realized gains of the FP antenna in both HP and VP at 5.2 GHz reach 16.6 dBi. Simulated and measured results verify the realizability and operational concept of the designed FP antenna.

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Section: Introductionmentioning

confidence: 99%

A High-Gain Wideband Fabry-Pérot Antenna Employing a Water-Based Frequency Selective Surface for Polarization- and RCS-Reconfigurability

Wang,

Liu,

Zhou

et al. 2024

International Journal of RF and Microwave Computer-Aided Engine

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show abstract

“…The scheme was based on the microstrip resonators and absorptive frequency selective surface (AFSS). A polarisation conversion metasurface (PCM) with a wide operating band and high polarisation conversion ratio was proposed for antenna RCS reduction by Hong et al [ 16 ], and they constructed a third-order quadrate fractal structure. The PCM was applied for the RCS reduction application of microstrip antennas using a chessboard-like arrangement.…”

Section: Introductionmentioning

confidence: 99%

Coding Metamaterial Analysis Based on 1-Bit Conventional and Cuboid Design Structures for Microwave Applications

et al. 2022

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This study aimed to investigate the compact 1-bit coding metamaterial design with various conventional and cuboid shapes by analysing the bistatic scattering patterns as well as the monostatic radar cross-section for microwave applications. The construction of this metamaterial design depends on binary elements. For example, 1-bit coding metamaterial comprises two kinds of unit cell to mimic both coding particles such as ‘0’ and ‘1’ with 0° and 180° phase responses. This study adopted a 1 mm × 1 mm of epoxy resin fibre (FR-4) substrate material, which possesses a dielectric constant of 4.3 and tangent loss of 0.025, to construct both elements for the 1-bit coding metamaterial. All simulations were performed using the well-known Computer Simulation Technology (CST) software. The elements were selected via a trial-and-error method based on the phase response properties of the designs. On the other hand, the phase response properties from CST software were validated through the comparison of the phase response properties of both elements with the analytical data from HFSS software. Clear closure was obtained from these findings, and it was concluded that the proposed conventional coding metamaterial manifested the lowest RCS values with an increasing number of lattices. However, the cuboid-shaped design with 20 lattices demonstrated an optimised bistatic scattering pattern of −8.49 dBm2. Additionally, the monostatic RCS values were successfully reduced within the 12 to 18 GHz frequency range with −30 to −10 dBm2 values. In short, the introduced designs were suitable for the proposed application field, and this unique phenomenon is described as the novelty of this study.

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“…However, the RCS reduction is achieved by sacrificing the profile for these antennas, which also increases the complexity of processing. The second type is to place randomly or regularly arranged metasurfaces around the antenna radiating patch 13–16 . In Sharma et al, 15 A low RCS microstrip patch antenna is proposed, with an impedance bandwidth of 5%.…”

Section: Introductionmentioning

confidence: 99%

“…The out‐of‐band RCS is reduced by randomly loading the metasurface units. In Hong et al, 16 A low RCS antenna is proposed, with an impedance bandwidth of 13.8%. It is worth noting that most broadband low RCS antennas focus on the reduced bandwidth of RCS, rather than the radiation bandwidth of low RCS antennas.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A broadband and low‐profile magnetoelectric dipole antenna with low radar cross section

Sun

Guo

et al. 2022

Micro & Optical Tech Letters

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In this study, a novel broadband and low profile magnetoelectric dipole (MED) antenna with a low radar cross section (RCS) is proposed. The 10 dB RCS reduction is achieved by shifting the reflected energy to six directions, which is an efficient optimization method based on convolutional operations. Specifically, the polarization conversion metasurface (PCM) unit with high polarization conversion rate is constructed and employed in the MED antenna for RCS reduction. The proposed antenna is fabricated and measured.Measured results depict that the low RCS antenna offers good impedance matching in 12-15.6 GHz (relative bandwidth 26%). Compared with the reference antenna, the RCS of the proposed antenna is reduced by more than 10 dB from 9.9 to 16 GHz. It is proved that the proposed antenna has broadband and stable radiation performance and outstanding specular reflecting suppression capabilities.

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Wideband Polarization Conversion Metasurface for RCS Reduction of Antennas

Cited by 10 publications

References 18 publications

A High-Gain Wideband Fabry-Pérot Antenna Employing a Water-Based Frequency Selective Surface for Polarization- and RCS-Reconfigurability

A High-Gain Wideband Fabry-Pérot Antenna Employing a Water-Based Frequency Selective Surface for Polarization- and RCS-Reconfigurability

Coding Metamaterial Analysis Based on 1-Bit Conventional and Cuboid Design Structures for Microwave Applications

A broadband and low‐profile magnetoelectric dipole antenna with low radar cross section

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