On the Use of Half-Cut Elements for Single-Layer Wideband Reflectarrays

Ning, Peng; Min, Ming; Guo, Lu; Feng, Wenjie

doi:10.1109/lawp.2021.3067740

Cited by 12 publications

(13 citation statements)

References 12 publications

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“…Lately, in 2021 Ning et. al [102] applied a well-known antenna miniaturization technique called half-cut approach on a subwavelength unit cell proposed in 2019 by Guo et. al [103].…”

Section: Figure 23 Unit Cell Based On the Mefss And The Equivalent Ci...mentioning

confidence: 99%

“…The subwavelength periodicity approach is the second most popular approach after the multi resonance, with 16 wideband RAs listed in Table II. However, it is important to note that the subwavelength periodicity is the most flexible approach as it can be easily integrated with other approaches such as the element rotation, the multi resonance or phase delay lines to yield superior gain bandwidth characteristics as it will be discussed in subsection F. In this approach the majority of the designs operate in X-band [73], [93], [96], [97], [98], [99], [101], [102]. There are one K-band designs [104], three Kuband wideband RAs [95,108], [100], one dual band RA at X/K-band [70] and two Ka-band designs [92], [94] while there are two tightly coupled RAs that operate in C-band and Xband, e.g., [107] and [105].…”

Section: E Subwavelength Periodicity Approach Evaluationmentioning

confidence: 99%

“…Different lattice periodicity can be observed from Table II such as 𝜆/3, 𝜆/4, 𝜆/5 and 𝜆/6. Amongst all X-band RAs presented in Table II, the RAs found in [99] and [102] have the smallest RA with size of 6.9𝜆 0 * 6.9𝜆 0 at 10GHz and present the highest 1-dB gain bandwidth performance of 30% and 31%, respectively. Despite their large gain bandwidth, both unit cell designs are based on a single layer with no air or foam layer.…”

Section: E Subwavelength Periodicity Approach Evaluationmentioning

confidence: 99%

See 2 more Smart Citations

Wideband Reflectarrays for 5G/6G: A Survey

Theoharis

Raad

Tubbal

et al. 2022

IEEE Open J. Antennas Propag.

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show abstract

“…Lately, in 2021 Ning et. al [102] applied a well-known antenna miniaturization technique called half-cut approach on a subwavelength unit cell proposed in 2019 by Guo et. al [103].…”

Section: Figure 23 Unit Cell Based On the Mefss And The Equivalent Ci...mentioning

confidence: 99%

Section: E Subwavelength Periodicity Approach Evaluationmentioning

confidence: 99%

Section: E Subwavelength Periodicity Approach Evaluationmentioning

confidence: 99%

See 1 more Smart Citation

Wideband Reflectarrays for 5G/6G: A Survey

Theoharis

Raad

Tubbal

et al. 2022

IEEE Open J. Antennas Propag.

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show abstract

“…At the element design level, several broadband techniques are introduced in the literature to improve the bandwidth behavior of phasing elements in reflecting metasurfaces [9][10][11][12][13][14][15][16] . Recently, a novel broadband technique is introduced which is based on the polarization rotation of the impinging waves from the feed which causes to working of the metasurface in cross-polarization mode 17 .…”

Section: Introductionmentioning

confidence: 99%

High-Efficiency Dual-Polarized Broadband Reflecting Metasurface Using Continuous Polarization Conversion Technique and Element with Multi Degree of Freedom

Karimipour

Aryanian

2022

Preprint

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In this study, two effective approaches are combined which are implemented at the element design level and system design level to simultaneously improve the frequency bandwidth and aperture efficiency of a dual-polarized single-layer reflecting metasurface. At the element design level, a broadband behavior is realized by using the polarization conversion technique (PCT) which is a novel technique to enhance the bandwidth of the element. To this end, an anisotropic metasurface with I-shaped metal patch is proposed for rotating the polarization of the wave emitted from a point source by 90 • and making a continuous phase shift in a full range of 360 • within 8-18 GHz.Therefore, a completely equiphase aperture is achieved leading to enhancing the metasurface performance such as directivity and aperture efficiency and reducing the sidelobe level compared to reflecting metasurface developed by 1-bit phase quantization technique. At the system design level, the three-frequency phase synthesis (TFPS) method, which is based on determining the best constant reference phase for the aperture, is used and the corresponding constant reference phases are optimized to minimize the phase error in the whole band. The combination of TFPS and PCT enhances the effectiveness of the TFPS method considerably. An 841 element reflecting metasurface with aperture dimensions of 290 cm × 290 cm is designed, simulated, and fabricated in Ku-band to verify the concept. The measurement results show that the 1-dB gain bandwidth before and after combining PCT and TFPS techniques are 17.47% (14.1 GHz to 16.8 GHz) and 30.3% (14 GHz to 19 GHz), respectively. In addition, the maximum aperture efficiency of the proposed metasurface is 63.62% which occurs at 14.5 GHz.

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“…the shared aperture technology is adopted in this design to reduce the number of substrates of the element. Besides, combining the advantages of single-layer dualpolarization transmission element [9] and sub-wavelength wideband element [16]- [17], a novel unit cell, which consists of two metal layers printed on a single substrate drilled with two metallized vias, is proposed and analyzed. It is noted that the designed element has the ability to independently control the reflection and transmission phases by adjusting different geometric parameters.…”

Section: Introductionmentioning

confidence: 99%

A Single-Layer Reflect-Transmit-Array Antenna With Polarization-Dependent Operation

Song

Xue²,

Cai

et al. 2021

IEEE Access

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In this paper, a novel low-profile, dual-polarized reflect-transmit-array antenna is proposed to independently control the forward and backward beams. A single-layer polarization-dependent element is designed with 0.1 λ0-thickness at 10 GHz, which comprises only two layers of metal patches printed on a dielectric substrate and two metallized vias. Through changing the polarization direction of the incident wave, the operating mode of the proposed array can be easily shifted among reflection mode, reflectiontransmission mode, as well as transmission mode. To verify the design concept, a circular reflect-transmitarray (D = 250 mm) is designed, fabricated, and measured. The measured results indicate a 1 dB bandwidth of 17% (9.8-11.5 GHz) in reflection mode and a measured peak gain of 24.2 dB at 10.5 GHz. Moreover, a 1 dB bandwidth of 6% (9.7-10.3 GHz) can be achieved in transmission mode, and the measured peak gain is 24.6 dB at 10 GHz. The results prove that the proposed design is promising for bidirectional wireless communication applications.

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On the Use of Half-Cut Elements for Single-Layer Wideband Reflectarrays

Cited by 12 publications

References 12 publications

Wideband Reflectarrays for 5G/6G: A Survey

Wideband Reflectarrays for 5G/6G: A Survey

High-Efficiency Dual-Polarized Broadband Reflecting Metasurface Using Continuous Polarization Conversion Technique and Element with Multi Degree of Freedom

A Single-Layer Reflect-Transmit-Array Antenna With Polarization-Dependent Operation

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