A Broadband Reflectarray Antenna Using Triple Gapped Rings With Attached Phase-Delay Lines

Han, Chunhui; Zhang, Yunhua; Yang, Qingshan

doi:10.1109/tap.2017.2679493

Cited by 60 publications

(53 citation statements)

References 12 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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show abstract

“…According to [7,8], reflection coefficient can be computed by the following relationship provided in Eqn. 2,…”

Section: Equivalent Circuit Analysismentioning

confidence: 99%

“…With these methods, linear phase responses can be achieved so as to improve the bandwidth of reflectarrays. Single-layer reflectarrays with attached delay-lines are reported in the lietrature owing to broad linear phase range, lower fabrication errors and cost [7].…”

Section: Introductionmentioning

confidence: 99%

A single layer delay-lines based reflectarray for X-band applications

Shabbir

Saleem

Rehman

et al. 2018

IEICE Electron. Express

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This paper presents a single-layer delay-lines based reflectarray for X-band applications. The proposed design contains an octagonal-shaped patch with T-shape delay-lines. A phase range of 500°is realized by using T-shape delay-lines. A stable phase range is achieved for TE and TM modes at 0°, 15°and 30°incident angles. An equivalent circuit model is used to investigate the resonant property of the proposed reflectarray unit element. A 21 × 21 elements reflectarray is designed, fabricated and measured on an FR-4 substrate. The proposed design provides 1-dB gain bandwidth of 18.5% and 3-dB gain bandwidth of 30%. Measured gain of 26 dBi at 10 GHz with aperture efficiency of 65% is obtained. The proposed reflectarray configuration have side-lobe-levels less than −25 dB.

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“…However, it has a major drawback which is narrow bandwidth operation because the reflection-phase property of each element based on resonance greatly depends on the frequency. To improve the antenna bandwidth in reflectarray, linearization of reflection phase response for the frequency can be realized in some investigation by using thick substrate [5], double square-rings [6], stacked patches [7], multi-resonant elements with low-cross polarization [8], phase-delay lines [9] and so on. We have also reported in [10][11][12][13][14] to improve the bandwidth based on multi-resonant behavior for single-and dual-polarization use.…”

Section: Introductionmentioning

confidence: 99%

Omega-Shaped Geometries of Reflectarray Resonant Elements With Low Cross-Polarization for Wideband and Dual-Polarization Use

Higashi¹,

Deguchi²,

Tsuji³

2018

PIER M

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Abstract-This paper presents low cross-polarization single-layer reflectarray elements for dualpolarization use. These elements have an omega-shaped symmetrical structure to realize the crosspolarization reduction and also provide parallel linear reflection-phase properties with almost the same slop characteristics for the frequency, thereby achieving the desirable reflection phase range more than 360 • over the wide frequency range. To verify effectiveness of the proposed elements, a reflectarray antenna with an offset feed is constructed by them, and wideband frequency characteristics are also confirmed at Ku-band numerically and experimentally.

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A Broadband Reflectarray Antenna Using Triple Gapped Rings With Attached Phase-Delay Lines

Cited by 60 publications

References 12 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

A single layer delay-lines based reflectarray for X-band applications

Omega-Shaped Geometries of Reflectarray Resonant Elements With Low Cross-Polarization for Wideband and Dual-Polarization Use

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