Dual-band X/Ku Reflectarray Antenna Using a Novel FSS-Backed Unit-Cell with Quasi-Spiral Phase Delay Line

Derafshi, Iman; Komjani, Nader; Ghasemi-Mizuji, Ensieh; Mohammadirad, Mohammad

doi:10.1590/2179-10742016v15i3582

Cited by 12 publications

(5 citation statements)

References 6 publications

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“…Furthermore, the configuration of a dual band reflectarray is also an important factor for its practical manufacturing process. Li et al reported a dual band reflectarray with a laminated structure [13,14]; however, laminated structure requires complex manufacturing process to produce reflectarrays. Caner Guclu et al reported a dual band reflectarray using MEMS [15]; however, this reflectarray requires electrical switching to manipulate the two frequency bands.…”

Section: Introductionmentioning

confidence: 99%

Single-layer frequency selective dual-band reflectarray operating at 28 GHz and 39 GHz

et al. 2023

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We report a single-layer frequency selective dual band reflectarray operated at 28 and 39 GHz simultaneously. The reflectarray consists of cross dipole and spiral elements aligned on the surface of a substrate and dual band frequency selective surfaces aligned on the rear side. We aligned the cross dipole and spiral elements that can control the reflection direction at 28 and 39 GHz aligned on the same plane of the substrate, resulting in a simultaneous dual-band control of the reflection direction up to ± 30° independently. Furthermore, the dual band reflectarray showed higher transmittance at frequencies except for the target frequencies, indicating the reflectarray function only at 28 and 39 GHz and does not interfere with the other communication bands.

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Section: Introductionmentioning

confidence: 99%

Single-layer frequency selective dual-band reflectarray operating at 28 GHz and 39 GHz

et al. 2023

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“…Various methods are used for this purpose, such as: changing the dimensions of the elements 25 , elements loaded by delay lines 26 , element rotation 27 , aperture coupled patch 28 , and Phoenix elements 29 . Moreover, RAs are applicable in different functions such as polarization control 30 , creating multiple beams 31 , dual or multi-band structures 32 , beam shaping 33 , and other applications 34 , 35 . Another application of RAs is beam scanning.…”

Section: Introductionmentioning

confidence: 99%

A two-dimensional grating surface made of quaternary Huygens elements excited by a real source

Derafshi

Komjani

Mizuji

2023

Sci Rep

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In this article, a new method to create an anomalous reflection in the desired direction is proposed. Two-dimensional grating surfaces consisting of four particles with the properties of a Huygens source are employed in each period. Then, this method is extended to the problem in which the grating surface is illuminated by a real source such as a horn. In this case, the designed grating surface has different periods in both directions to collimate the reflected wave and give an in-phase wavefront. Using our method, a high-efficiency reflectarray (RA) based on quaternary Huygens grating is designed. This RA is distinguished from common RAs due to its beam squint capability. This array offers more aperture efficiency and thus more gain in comparison to the leaky waves that inherently have low aperture efficiency. Therefore, our designed RA can compete with leaky wave antennas in many applications. The mentioned RA is designed to have the main beam in the direction of $$\left( {{\theta _0} = {{68}^{\circ }},{\varphi _0} = {{225}^{\circ }}} \right)$$ θ 0 = 68 ∘ , φ 0 = 225 ∘ , at the frequency of 12 GHz. The simulation results show the realized gain and SLL of this antenna are 24.8 dB and $$-15.5$$ - 15.5 dB, respectively. Also, by changing the frequency in the range of 12–15 GHz, the direction of the main beam varies from $$\left( {{{68}^{\circ }}, {{225}^{\circ }}} \right)$$ 68 ∘ , 225 ∘ to $$\left( {{{39}^{\circ }}, {{225}^{\circ }}} \right)$$ 39 ∘ , 225 ∘ .

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“…The X-band compact and high gain reflectarray unit cell using SRR is discussed in [1]. A parametric analysis of X-band Double Split Ring Resonator (DSRR) as reflectarray for linear polarization is presented in [2] whereas a frequency selective dual band X/Ku SRR reflectarray is studied in [3]. The resonance frequency of SRR is the most important factor which needs a detailed investigation of the effect of different geometrical parameters.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Transmission and Reflection of Ku Band Split Ring Resonator Reflectarray using Waveguide Method

Naseer

Saka

2019

AEM

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In this paper, the analysis, design, and measurement of a split ring resonator reflectarray is presented. The 6 different designs of reflectarray are simulated to analyze the effect of splits position on resonance frequency. The SRR reflectarray which covered highest frequency bandwidth at Ku-band is fabricated and tested. In the fabrication, FR4 substrate is used. The S-parameter measurements of the fabricated reflectarray are performed by waveguide method. The obtained results have good reflection characteristics for a wide frequency range from 12 GHz to 16.5 GHz in Ku-band. The maximum value of reflection is achieved approximately at 15.3 GHz frequency

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Dual-band X/Ku Reflectarray Antenna Using a Novel FSS-Backed Unit-Cell with Quasi-Spiral Phase Delay Line

Cited by 12 publications

References 6 publications

Single-layer frequency selective dual-band reflectarray operating at 28 GHz and 39 GHz

Single-layer frequency selective dual-band reflectarray operating at 28 GHz and 39 GHz

A two-dimensional grating surface made of quaternary Huygens elements excited by a real source

Characterization of Transmission and Reflection of Ku Band Split Ring Resonator Reflectarray using Waveguide Method

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