State-of-the-Art Passive Beam-Steering Antenna Technologies: Challenges and Capabilities

Ahmed, Foez; Singh, Khushboo

doi:10.1109/access.2023.3278570

Cited by 9 publications

(2 citation statements)

References 117 publications

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“…Beam-scanning antennas are widely used in telecommunication systems and radars [1][2][3]. By adjusting the main beam of the antenna pattern, faster data transmission and increased energy efficiency in the telecommunications device is achieved.…”

Section: Introductionmentioning

confidence: 99%

Composite Right/Left-Handed Leaky-Wave Antenna with Electrical Beam Scanning Using Thin-Film Ferroelectric Capacitors

Platonov,

Altynnikov,

Komlev

et al. 2024

Coatings

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This article presents a wide-angle-scanning leaky-wave antenna (LWA) based on a composite right/left-handed (CRLH) transmission line. In contrast to traditional semiconductor elements, thin-film ferroelectric capacitors were implemented in the CRLH unit cells to enable electric beam scanning. The proposed CRLH LWA has a single-layer design without metalized vias and is compatible with PCB and thin-film technologies. To fabricate the CRLH LWA prototype, dielectric material substrates and thin-film ferroelectric capacitors were manufactured, and their characteristics were investigated. Double-sided metalized fluoroplast-4 reinforced with fiberglass with a permittivity of 2.5 was used as a substrate for CRLH LWA prototyping. A solid solution of barium strontium titanate (BaxSr1−xTiO3) with a composition of x=0.3 was used as a ferroelectric material in electrically tunable capacitors. The characteristics of the manufactured ferroelectric thin-film capacitors were measured at a frequency of 1 GHz using the resonance method. The capacitors have a tunability of about two and a quality factor of about 50. The antenna prototype consists of ten units with a total length of 1.25 wavelengths at the operating frequency of close to 2.4 GHz. The experimental results demonstrate that the main beam can be shifted within the range of −40 to 16 degrees and has a gain of up to 3.2 dB. The simple design, low cost, and excellent wide-angle scanning make the proposed CRLH LWA viable in wireless communication systems.

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Section: Introductionmentioning

confidence: 99%

Composite Right/Left-Handed Leaky-Wave Antenna with Electrical Beam Scanning Using Thin-Film Ferroelectric Capacitors

Platonov,

Altynnikov,

Komlev

et al. 2024

Coatings

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“…Even when the beam direction is fixed, the antenna still requires an electrical power supply. However, in recently published study [19][20][21], continuous beam steering can be achieved by mechanically rotating a double-layer frequency selective surface. In contrast, the mechanical technique exhibits a slower scanning speed.…”

Section: Introductionmentioning

confidence: 99%

Mechanical azimuthal beam‐steering Fabry–Perot resonator antenna with large deflection angle

Liu,

Zhu,

Zhang

et al. 2024

IET Microwaves Antenna & Prop

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Continuous beam steering approach with minimal power consumption is highly desirable in modern antenna designs. A simple mechanical method for achieving beam steering in the Fabry–Perot resonator antenna (FPRA) is presented. It involves rotating the upper phase gradient metasurface (PGM) mechanically to change the aperture phase distribution, so the beam is continuously steered in the azimuthal plane while maintaining a large elevation angle. The proposed PGM unit cell comprises a hexagonal ring and patch printed on both sides of the substrate, along with a honeycomb lattice. A prototype antenna operating at 5.65 GHz is fabricated and measured to validate the feasibility. Measurement results show that the FPRA achieves a gain of 14.9 dBi, and can continuously steer its beam in the azimuthal plane with an elevation angle of around θ = 50°. Measured radiation patterns in eight azimuthal directions (φ = 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315°) are consistent with the simulated results. Compared with other electrical tuning methods, our design has a compact size and requires lower power for the PGM rotation.

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Electronic Beam-Scanning Antennas

Koul,

Swapna,

Karthikeya

2024

Signals and Communication Technology

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State-of-the-Art Passive Beam-Steering Antenna Technologies: Challenges and Capabilities

Cited by 9 publications

References 117 publications

Composite Right/Left-Handed Leaky-Wave Antenna with Electrical Beam Scanning Using Thin-Film Ferroelectric Capacitors

Composite Right/Left-Handed Leaky-Wave Antenna with Electrical Beam Scanning Using Thin-Film Ferroelectric Capacitors

Mechanical azimuthal beam‐steering Fabry–Perot resonator antenna with large deflection angle

Electronic Beam-Scanning Antennas

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