A 1-Bit All-Metal Wide-Angle and Multipolarization Beam-Scanning Reconfigurable Reflectarray Antenna

Wang, Min; Mo, Yuxin; Xie, Wenqing; Hu, Nan; Chen, Zhengchuan; Tian, Zhong

doi:10.1109/lawp.2022.3230751

Cited by 9 publications

(10 citation statements)

References 24 publications

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“…A recently published paper [11] implemented dual-polarized RRA in a singleband. However, the aperture efficiency of this RRA is relatively low compared to that of the reported RRAs [4], [5], [10], and [12]. The reason for this could be element losses caused by the excessive use of PIN diodes, i.e., four diodes in a unit cell, which may have caused overheating of the antenna system.…”

Section: Introductionmentioning

confidence: 79%

“…However, this RRA results in relatively high cross-polarization level (CPL) and slow beam switching speed. In addition, the RRA in [12] does not support the dual-polarized dual-beam steering function.…”

Section: Introductionmentioning

confidence: 91%

“…However, the practical implementation of the dual-polarized RRA in a single aperture is still challenging due to poor isolation of orthogonal polarizations and relatively low aperture efficiency. Only a few studies have been conducted on dual-polarized RRAs with functions to simultaneously control dual-polarized beams, such as, steering x-and y-polarized beams in different direction or synthesizing by steering them in the same direction [10], [11], [12]. One such study designed a dual-polarized RRA with two orthogonal polarizations in a dual-band to achieve high isolation between orthogonal polarizations, e.g., x-and y-polarizations [10].…”

Section: Introductionmentioning

confidence: 99%

“…The reason for this could be element losses caused by the excessive use of PIN diodes, i.e., four diodes in a unit cell, which may have caused overheating of the antenna system. As an RRA with similar functions, another recently published paper [12] presented an all-metal RRA for multi-polarization based on a rotating element. By manually rotating each unit cell, the RRA using an x-polarized feed horn can steer the x-, y-, and circular polarized beams.…”

Section: Introductionmentioning

confidence: 99%

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A Dual-Polarized Reconfigurable Reflectarray Antenna Based on a Symmetrically Rotated Sub-Array

Lee

2023

IEEE Access

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This paper proposes a novel method for designing a dual-polarized reconfigurable reflectarray antenna (RRA) based on a symmetrically rotated sub-array operating in a single-band. To improve aperture efficiency and prevent grating lobes, a miniaturized unit cell of a rectangular ring patch with a size of 0.3λ 0 is adopted, where the λ 0 is a wavelength in free-space for a center frequency of 10 GHz. By employing the RRA with a symmetrically rotated sub-array, a significant suppression of the cross-polarization level (CPL) and a slight enhancement in peak gain are both achieved. The dual-polarized metasurface with 164 elements is assembled using a feeding structure optimized with F/D = 0.52. The beam steerable RRA is electronically controlled by a control board and has a wide beam steering range of up to ±60 • . The high aperture efficiencies of 26.2% and 27.0%, and relatively low CPLs of −22.6 and −22.8 dB for the x-and y-polarized beams were measured, respectively. Furthermore, the extended functions of the presented RRA, such as dual-polarized dual-beam steering and circular polarized beam steering, are confirmed in full-wave simulation.

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Section: Introductionmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Dual-Polarized Reconfigurable Reflectarray Antenna Based on a Symmetrically Rotated Sub-Array

Lee

2023

IEEE Access

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“…Its unit cells incorporate electronically switchable devices, enabling independent control of reflection properties for both polarizations. This allows the RRA to create independent and steerable beams in desired directions with different polarizations [24][25][26][27]. In [24], the authors present a 1-bit dual-band and dual-polarized RRA with a rectangular patch containing two PIN diodes per unit cell for beamsteering.…”

Section: Introductionmentioning

confidence: 99%

A Metasurface-Based Electronically Reconfigurable and Dual-Polarized Reflectarray Antenna for Beam-Steering Applications

Sangmahamad,

Janpugdee,

Zhao

2023

IEEE Access

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In this work, a metasurface-based, 1-bit electronically reconfigurable reflectarray antenna (RRA) is proposed for dual-polarization beam-steering applications. The proposed RRA consists of 16 × 16 Jerusalem cross-shaped unit cells loaded with PIN diodes, which are used as active and reconfigurable devices to generate a reflection phase difference of 180° between their on-and off-states. An optimal focal length to diameter ratio (𝑓/𝐷) for the feed antenna is determined to maximize its radiation coverage on the RRA. Microcontroller-based shift registers are used to resolve the complexity of the individual DC bias networks for the PIN diodes. The proposed RRA is designed, fabricated, and measured to evaluate its beam-steering performance. The measurement results show that the proposed RRA can achieve beam-steering of ±60° for x-and y-polarizations in both azimuth and elevation planes. Moreover, the proposed RRA is further verified by full-wave simulations to evaluate its additional functions, such as the generation of sum and difference beams for monopulse radar systems. The proposed RRA is anticipated to have significant potential in areas such as wireless communications, imaging, and radar systems, and is a particularly suitable candidate for reconfigurable intelligent surfaces (RISs) due to its adaptability and capability of dynamically generating different radiation patterns.INDEX TERMS, Reconfigurable reflectarray antenna, reflective metasurface, beam-steering, PIN diode.

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Design of a Wideband 1-Bit Metal-Only Reconfigurable Reflectarray Antenna

Li,

Wang,

et al. 2023

2023 IEEE 11th Asia-Pacific Conference on Antennas and Propagation (APCAP)

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A 1-Bit All-Metal Wide-Angle and Multipolarization Beam-Scanning Reconfigurable Reflectarray Antenna

Cited by 9 publications

References 24 publications

A Dual-Polarized Reconfigurable Reflectarray Antenna Based on a Symmetrically Rotated Sub-Array

A Dual-Polarized Reconfigurable Reflectarray Antenna Based on a Symmetrically Rotated Sub-Array

A Metasurface-Based Electronically Reconfigurable and Dual-Polarized Reflectarray Antenna for Beam-Steering Applications

Design of a Wideband 1-Bit Metal-Only Reconfigurable Reflectarray Antenna

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