Low profile and broadband circularly polarized metasurface antenna based on nonuniform array

Cui, Jie; Zhao, Xianda; Sheng, Weixing

doi:10.1016/j.aeue.2022.154386

Cited by 8 publications

(5 citation statements)

References 18 publications

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“…It can be observed that a simple rotation adjustment for the polarization state switch has little to no impact on the radiated performance, validating this design effectively. To further validate the PC properties of HMS, CMA [16][17][18][19] was then utilized to clearly explain the design process, considering the inherent properties of the conductor structure calculated without the addition of excitation. To achieve circular polarization (CP) properties with CMA-aided design, the following conditions must be met: Firstly, ensure that the two MS values are equal and exceed 0.707; Secondly, maintain a 90° phase difference between the CAs of the two modes; Thirdly, confirm that the current surfaces generated by the two modes are orthogonal; Lastly, ensure consistency in the direction of maximum radiation.…”

Section: Lhcp Ihms−antenna Design and Analysismentioning

confidence: 99%

“…An introduction is made of a 2 × 2 nonuniform MS arranged with simple rectangular patches. By employing an appropriate feed network design, orthogonal modes were achieved, leading to remarkable radiated behavior, as reported in [ 19 ]. It is worth noting that CP modes are excited through both the feed network and the MSs, which adds complexity to the antenna design.…”

Section: Introductionmentioning

confidence: 99%

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Wideband Circularly Polarization and High-Gain of a Slot Patch Array Antenna Realized by a Hybrid Metasurface

Chen,

Yang,

et al. 2024

Sensors

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In this paper, a patch array antenna with wideband circular polarization and high gain is proposed by utilizing a hybrid metasurface (MS). A corner-cut slotted patch antenna was chosen as the source due to the possible generation of CP mode. The hybrid MS (HMS), consisting of a receiver MS (RMS) arranged in a 2 × 2 array of squared patches and a linear-to-circular polarization conversion (LCPC) MS surrounding it was then utilized as the superstrate driven by the source. The LCPC MS cell is a squared-corner-cut patch with a 45° oblique slot etched, which has the capability for wideband LCPC. The LCPC unit cell possesses wideband PC capabilities, as demonstrated by the surface current analysis and S-parameter simulations conducted using a Floquet–port setup. The LP EM wave radiated by the source antenna was initially received by the RMS, then converted to a CP wave as it passed through the LCPC MS, and ultimately propagated into space. To further enhance the LCPC properties, an improved HMS (IHMS) was then proposed with four cells cut at the corners, based on the original HMS design. To verify this design, both CMA and E-field were utilized to analyze the three MSs, indicating that the IHMS possessed a wideband LCPC capability compared to the other two MSs. The proposed antenna was then arranged in a 2 × 2 array with sequential rotation to further enhance its properties. As demonstrated by the measurements, the array antenna achieved an S11 bandwidth of 60.5%, a 3 dB AR bandwidth of 2.85 GHz, and a peak gain of 15.1 dBic, all while maintaining a low profile of only 0.09λ0.

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Section: Lhcp Ihms−antenna Design and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wideband Circularly Polarization and High-Gain of a Slot Patch Array Antenna Realized by a Hybrid Metasurface

Chen,

Yang,

et al. 2024

Sensors

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“…https://www.indjst.org/ As for the future scope, these antenna designs can be evaluated for other performance parameters like polarization (24) , radiation efficiency, directivity and beam-efficiency for 6G applications and medical applications etc. Another area where future research can be conducted is the application like polarization control and beam steering etc, of different possible metasurface materials in the metasurface layer of unit cell array.…”

Section: Demeritsmentioning

confidence: 99%

Performance Enhancement of THz Antenna with Reduced Size of Graphene Metasurface Unit Cell Structure Array

Sharma,

Kaur

2023

IJST

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Objectives: To design a metasurface layer of graphene unit cells with reduced surface area by incorporating different geometry of unit cell. Methods: The metasurface layer in the form of unit cell array is traditionally made of very simple geometry like square unit cell to limit design complexity. However, if the unit cell structure geometry is changed to triangular shape, it reduces the total surface area of the metasurface layer, thereby saving the graphene material. The proposed design is not only reduces the size of the metasurface layer of THz antenna but also enhances the performance of the antenna. Findings: The single square unit cell structure has 337.46 µm 2 area and an array of 9 x 9 such unit cells consume 27334.26 µm 2 area. On the other hand, a single triangular unit cell design is 123.94 µm 2 and an array of 9 x 9 such unit cells consume only 10039.14 µm 2 area which is a saving of 63.35 % metasurface material. Novelty:The proposed antenna design in the paper compares the existing designs for better bandwidth, better return loss and reduction in the total surface area utilized by the metasurface layer and delivers a better performance.

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“…Numerous studies have focused on circular polarized antennas for mobile communication systems. In [13], the authors proposed a 4×4 non-uniform patch array antenna with a feeding structure that employs a quadrature phase quarter-power divider (PD) to produce stable circular polarized radiation. Experimental results demonstrated that the proposed antenna achieved a peak gain of 8.7 dBic with compact dimensions of 0.67λ×0.67λ×0.06λ.…”

Section: Introductionmentioning

confidence: 99%

Advancements in Mobile Communication: A Novel Sectoral Antenna Design Incorporating Magneto-Electric Curved Strip Dipoles and PRS Superstrate

Santalunai,

Naktong

et al. 2024

IEEE Access

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This research investigates the process of designing, practical implementation, and modification of features in a sectoral antenna for mobile communication technology. The study employs the principles of a magneto-electric dipole and metamaterials to achieve its objectives. The antenna comprises a pair of magneto-electric curved strip dipoles arranged in a cross configuration for feeding. The antenna superstructure is constructed using a metamaterial consisting of three layers of metallic rods and a U-shaped reflector plane. The feeding component is oriented orthogonally to the ground plane at angles of ±45 degrees and is powered by two crossed-shaped strips to achieve dual polarization. Circular polarization can be attained through a three-layer metamaterial, providing control over the electric field's magnitude and phase. Additionally, the U-shaped reflector plane reflects waves, effectively increasing the sectoral antenna's beamwidth. The sectoral antenna achieves a peak gain of 15.35 dBi, representing an improvement over the initial gain of 9.8 dBi achieved solely through the use of magneto-electric curved strip dipoles. This proposed methodology can be adapted to enable circular polarization for mobile communication.INDEX TERMS Circular polarization, magneto-electric antenna, metamaterials, curved strip dipole, high gain.

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Low profile and broadband circularly polarized metasurface antenna based on nonuniform array

Cited by 8 publications

References 18 publications

Wideband Circularly Polarization and High-Gain of a Slot Patch Array Antenna Realized by a Hybrid Metasurface

Wideband Circularly Polarization and High-Gain of a Slot Patch Array Antenna Realized by a Hybrid Metasurface

Performance Enhancement of THz Antenna with Reduced Size of Graphene Metasurface Unit Cell Structure Array

Advancements in Mobile Communication: A Novel Sectoral Antenna Design Incorporating Magneto-Electric Curved Strip Dipoles and PRS Superstrate

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