Reflectarray antenna design with double cutted ring element for <scp>X‐band</scp> applications

Bodur, Hande; Çimen, Sibel

doi:10.1002/mop.32436

Cited by 22 publications

(13 citation statements)

References 20 publications

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“…At the element design level, several broadband techniques are introduced in the literature to improve the bandwidth behavior of phasing elements in reflecting metasurfaces 11 – 18 . Recently, a novel broadband technique has been proposed based on the polarization rotation of the impinging waves from the feed which makes the metasurface work in the cross-polarization mode 19 .…”

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

Sci Rep

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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 the I-shaped metal patch is proposed for rotating the polarization of the wave emitted from a point source by 90$$^{\circ }$$ ∘ and making a continuous phase shift in a full range of 360$$^{\circ }$$ ∘ 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 $$\times $$ × 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% (14.1–16.8 GHz) and 30.3% (14–19 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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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

Sci Rep

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“…There are different types of reflectarrays, such as planar microstrip reflectarrays [ 2 , 3 , 4 , 5 , 6 ] and dielectric resonator reflectarrays [ 7 , 8 , 9 ]. The main feature of the reflectarray is that its radiation characteristics can be manipulated by tuning the geometrical dimensions of its unit cells [ 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Analysis and Design of an X-Band Reflectarray Antenna for Remote Sensing Satellite System

Soliman

Eldesouki

Attiya

2022

Sensors

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This paper presents the analysis and design of an X-band reflectarray. The proposed antenna can be used for a medium Earth orbit (MEO) remote sensing satellite system in the 8.5 GHz band. To obtain a nearly constant response along the coverage area of this satellite system, the proposed antenna was designed with a flat-top radiation pattern with a beam width of around 29° for the required MEO system. In addition, broadside pencil beam and tilted pencil beam reflectarrays were also investigated. The feeding element of the proposed reflectarray antennas is a Yagi–Uda array. The amplitude and phase distribution of the fields due to the feeding element on the aperture of the reflectarray antenna are obtained directly by numerical simulation without introducing any approximation. The required phase distribution along the aperture of the reflectarray to obtain the required flat-top radiation pattern is obtained using the genetic algorithm (GA) optimization method. The reflecting elements of the reflectarray are composed of stacked circular patches. This stacked configuration was found to be appropriate for obtaining a wide range of reflection phase shift, which is required to implement the required phase distribution on the reflectarray aperture. The antenna was fabricated and measured for verification.

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“…The design challenge of the traditional microstrip reflectarray is the problem of narrow bandwidth. [4][5][6] The performance worsened due to the loss of the microstrip in millimeter wave band. The literatures with a variety of design methods to broaden the bandwidth, including a single improved layer structure, with multiple resonances on a single layer, 4 and a broadband unit can be obtained.…”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6] The performance worsened due to the loss of the microstrip in millimeter wave band. The literatures with a variety of design methods to broaden the bandwidth, including a single improved layer structure, with multiple resonances on a single layer, 4 and a broadband unit can be obtained. The multi-layer microstrip structure of the highgain dual-band reflectarray increases the profile and costs.…”

Section: Introductionmentioning

confidence: 99%

Wideband 3D‐printed dielectric reflectarray in Ka‐band

Liao

Xing

et al. 2022

Micro & Optical Tech Letters

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An ultra‐wideband 3D‐printed dielectric reflectarray antenna (DRA) is proposed in this letter. The dielectric reflectarray unit (DRU) adopts the photosensitive resin therm1220, which dielectric constant of 3.97 is conducive to improving the bandwidth. Through adjusting the size of the DRU, the reflection phase can be adjusted. The dielectric reflectarray is 23 × 23 element which printed by stereo lithography apparatus (SLA) and is realized by installing a metal plate with four resin screws. The measured of the gain covers 25.8–28.9 dBi from 27.5 to 38 GHz. And the 3‐dB gain bandwidth of measured is 32.1%. The measured aperture efficiency is basically above 30% from 28 to 35 GHz. The maximum gain is 28.1 dBi at 30 GHz, and the aperture efficiency is 39% during measurement. The 3 dB beam width of the E‐plane and H‐plane are both about 5.4° in Ka‐band. A good agreement can be observed between measurement and simulation.

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Reflectarray antenna design with double cutted ring element for X‐band applications

Cited by 22 publications

References 20 publications

High-efficiency dual-polarized broadband reflecting metasurface using continuous polarization conversion technique and element with multi degree of freedom

High-efficiency dual-polarized broadband reflecting metasurface using continuous polarization conversion technique and element with multi degree of freedom

Analysis and Design of an X-Band Reflectarray Antenna for Remote Sensing Satellite System

Wideband 3D‐printed dielectric reflectarray in Ka‐band

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