Design and Experiment of a Near-Zero-Thickness High-Gain Transmit-Reflect-Array Antenna Using Anisotropic Metasurface

Yang, Fan; Deng, Ruyuan; Xu, Shenheng; Li, Maokun

doi:10.1109/tap.2018.2820320

Cited by 128 publications

(42 citation statements)

References 26 publications

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“…Furthermore, the multiresonance elements could feature low manufacture cost and low profile compared to the multilayer elements, which is more convenient for the real applications. Other techniques are also illustrated, such as the subwavelength elements, the phoenix‐elements, the metal‐only elements, the phase‐delay lines, the substrate integrated waveguide, and the fractal elements . However, the above‐mentioned antennas rarely feature single‐layer configuration or operate in a broad bandwidth at Ka‐band.…”

Section: Introductionmentioning

confidence: 99%

“…Other techniques are also illustrated, such as the subwavelength elements, the phoenix-elements, the metal-only elements, the phase-delay lines, the substrate integrated waveguide, and the fractal elements. [22][23][24][25][26][27][28][29][30][31] However, the above-mentioned antennas rarely feature single-layer configuration or operate in a broad bandwidth at Ka-band.…”

Section: Introductionmentioning

confidence: 99%

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A single‐layer Ka‐band broadband reflectarray antenna using log‐periodic elements

Zhao

Wang

et al. 2019

Micro & Optical Tech Letters

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This letter presents a novel log‐periodic reflectarray element based on a single‐layer substrate. To achieve a full 360° phase coverage with a gentle slope, the corresponding parameters are optimized. For the sake of minimizing the effects of the feed blockage, the proposed element is used to construct a Ka‐band offset‐fed reflectarray antenna whose aperture size is 81 mm × 81 mm. Moreover, a corresponding prototype is also fabricated to test the actual radiation performance. The measured maximum gain is 26.65 dB at the center frequency of 33 GHz with the aperture efficiency of 46.34%. Moreover, the measured peak sidelobe for E‐plane is lower than −17.87 dB and 10.69% of 1‐dB gain bandwidth is also achieved, which demonstrates that the proposed antenna features the characteristic of broadband. The simulated and measured results show that the proposed antenna features good radiation performance, which has the potential for 5G communication systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A single‐layer Ka‐band broadband reflectarray antenna using log‐periodic elements

Zhao

Wang

et al. 2019

Micro & Optical Tech Letters

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“…[1] In the primitive sketch, the multi-beam far-field patterns have been generated by singlefeed-per-beam reflector antenna, phased array antennas, and transmit/reflect-array antennas. [2,3] However, all of them have sophisticated form factors, complex feeding structure, and large antenna spacing, which inevitably result in arrays not being deployed in practice. [4,5] Recent years have witnessed a clear tendency toward achieving multiple contour beams using fully planar metasurfacebased devices with a lighter weight and lower cost compared to the solid reflectors [6] and bulky metamaterials.…”

Section: Introductionmentioning

confidence: 99%

Flexible Manipulation of Emitting Beams Using Single‐Aperture Circularly Polarized Digital Metasurface Antennas: Multi‐Beam Radiation toward Vortex‐Beam Generation

Nadi

Rajabalipanah

Cheldavi

et al. 2020

Advcd Theory and Sims

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As the technological demands for multiple‐input multiple‐output communication systems increasingly grow, there is a critical need for the next generation of multi‐beam radiators. The concept of single‐feed compact phase‐encoded metasurface antennas is introduced, the radiation specifications of which can be flexibly manipulated to provide circularly‐polarized single‐, dual‐, quad‐beam far‐field patterns, a circularly‐polarized optical angular momentum‐carrying beam, and a circularly‐polarized quasi‐omnidirectional emission. With a small footprint area at f = 5.8 GHz, the proposed circularly polarized coding metasurface antenna (CPCMA) consists of several radiating meta‐atoms with 2‐bit excitation phases of 0, π/2, π, and 3π/2. Compared with conventional antenna arrays, the center‐to‐center distance of the coding elements is noticeably reduced, where periodic boundary conditions have been employed to analyze the inter‐element coupling effects. A low‐cost and simple corporate feed network is also designed to implement the required coding mask of each CPCMA type. To verify the performance of the proposed CPCMA, a prototype is fabricated and measured. Proof‐of‐concept experiments demonstrate excellent agreement with numerical simulations and theoretical predictions. This constructs a bridge between conventional arrays and digital metasurfaces, providing a powerful host for the next generation of multi‐beam circularly polarized radiators.

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“…In most experimental demonstrations, the TA panels use dielectric substrates; the latter contribute widely to the overall cost of the entire structures (for passive prototypes), especially at Ka-band and beyond. For applications with stringent environment, such as space communications or exploration [14], and/or low-cost constraints, it may be desirable to avoid the use of such substrates, thus motivating the design of metalonly transmitarray antennas (MOTAs) [15]- [21] where the unitcells and TA panels are fabricated using pure metal sheets. Various designs have been proposed with high efficiency [16], broad bandwidth [17], or dual-band properties at X- [18] and Ku-bands [19].…”

Section: Introductionmentioning

confidence: 99%

“…A three-layer MOTA is demonstrated in [20] at X-band with high efficiency and the metal-only unit-cell (MOUC) provides a phase range of 313° in linear polarization. Recently, a single-layer antenna based on spatially-fed configuration is presented in [21] with two simultaneous beams in linear polarization: the first one is obtained by reflection mode as a reflectarray, and the second one is achieved by transmission mode as a transmitarray.…”

Section: Introductionmentioning

confidence: 99%

Low-Cost Metal-Only Transmitarray Antennas at Ka-Band

Pham

Clemente

Fourn

et al. 2019

Antennas Wirel. Propag. Lett.

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We present here a design of metal-only unit-cell for transmitarray antenna (TA) applications at Ka-band, and we introduce a solution to reduce the total number of layers by polarization manipulation. The corresponding unit-cell is based on a C-shaped slot radiating element, fabricated by laser ablation on a thin metal sheet and operating in linear polarization. Thanks to the rotation of the slot, polarization of radiated wave can be manipulated to any arbitrary direction, particularly in the orthogonal direction of the incident wave. By combining two unitcells with opposite rotation directions, we show that metal-only unit-cells made of three layers can be obtained, with a 360° phase shift, insertion loss lower than 1 dB and low cross-polarization level. This unit-cell with reduced profile is used to design several TA prototypes with a main beam direction pointing up to 50°. The experimental results demonstrate an 11% 3-dB fractional gain bandwidth with an aperture efficiency around 50% for a beam at boresight.

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Design and Experiment of a Near-Zero-Thickness High-Gain Transmit-Reflect-Array Antenna Using Anisotropic Metasurface

Cited by 128 publications

References 26 publications

A single‐layer Ka‐band broadband reflectarray antenna using log‐periodic elements

A single‐layer Ka‐band broadband reflectarray antenna using log‐periodic elements

Flexible Manipulation of Emitting Beams Using Single‐Aperture Circularly Polarized Digital Metasurface Antennas: Multi‐Beam Radiation toward Vortex‐Beam Generation

Low-Cost Metal-Only Transmitarray Antennas at Ka-Band

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