A Multi Facets Composite Panel Reflectarray Antenna for a Space Contoured Beam Antenna in Ku Band

Legay, Hervé; Bresciani, Daniele; Labiole, Eric; Chiniard, Renaud; Gillard, Raphaël

doi:10.2528/pierb13061407

Cited by 35 publications

(28 citation statements)

References 21 publications

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“…Reflectarray antennas are most commonly used in far field applications [1], such as Direct Broadcast Satellite (DBS) [2][3][4][5], Local Multipoint Distribution Service (LMDS) [6][7][8] or radar interferometers [9,10]; while near field applications are less conventional. Nevertheless, in recent years reflectarrays have been proposed in near field for Radio-Frequency IDentification (RFID) reader applications [11], imaging [12] or microwave virus sanitizer [13].…”

Section: Introductionmentioning

confidence: 99%

General Near Field Synthesis of Reflectarray Antennas for Their Use as Probes in Catr

Prado¹,

Vaquero²,

Arrebola³

et al. 2017

PIER

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Abstract-In this work, reflectarray antennas are proposed for their use as probes in compact antenna test ranges. For that purpose, the quiet zone generated by a single offset reflectarray is enhanced, overcoming the limitation imposed by the amplitude taper of the feed antenna. First, the near field is characterized by a radiation model which computes the near field of the reflectarray as far field contributions of each element, which are modeled as small rectangular apertures and thus taking into account the active element pattern. Then, a phase only synthesis is performed with the LevenbergMarquardt algorithm in order to improve the size of the generated quiet zone. Due to the nature of the application, this near field synthesis takes into account both the amplitude and phase, making it a more challenging task than an amplitude-only synthesis. The optimization is focused on flattening the amplitude while trying to preserve the phase front generated by the reflectarray.

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Section: Introductionmentioning

confidence: 99%

General Near Field Synthesis of Reflectarray Antennas for Their Use as Probes in Catr

Prado¹,

Vaquero²,

Arrebola³

et al. 2017

PIER

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“…This antenna concept has gained maturity in the frame of its application as an alternative of shaped reflector for a contoured beam in Ku-band [2], or as a medium size deployable antenna in C-band [3]. Any distortion of the deployed reflective surface has a greater effect in Ka-band, but they can be compensated for by antenna processing (see Section II.B).…”

Section: A Deployable Reflectarraymentioning

confidence: 99%

A large imaging array in Ka band with a substrate integrated waveguide Pillbox beamformer

Legay

Girard

Valerio

et al. 2014

2014 IEEE Conference on Antenna Measurements &Amp; Applications (CAMA)

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“…The reflectarray geometry should be adjusted in such a way that the element behavior matched the required synthesized matrix, which can be difficult to accomplish. In [17] a similar approach to [16] was used, adjusting the reflectarray element geometry to match the reflection coefficient matrix by applying certain geometrical transformations to the unit cell described in [7]. Another technique for the crosspolar optimization of reflectarrays has been explained in [18]- [20] where the Intersection Approach is used along with the Broyden-Fletcher-Goldfarb-Shanno (BFGS) optimization algorithm.…”

Section: Introductionmentioning

confidence: 99%

Efficient Crosspolar Optimization of Shaped-Beam Dual-Polarized Reflectarrays Using Full- Wave Analysis for the Antenna Element Characterization

Prado

Arrebola

Pino

et al. 2017

IEEE Trans. Antennas Propagat.

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A method for the optimization of the crosspolar component of dual-polarized reflectarrays using full-wave analysis at the element level is described and demonstrated. The reflectarray full-wave analysis is based on local periodicity and integrated within the optimization process in order to accurately characterize the crosspolar far field. The proposed method is based on the generalized Intersection Approach framework using the Levenberg-Marquardt Algorithm as backward projector, and the employed full-wave analysis is based on the Method of Moments assuming local periodicity (MoM-LP). Several strategies to accelerate the computations are exploited, such as the parallelization of all the algorithm building blocks. To minimize the impact of MoM-LP in the optimization process, a strategy to reduce the number of MoM-LP calls is described, further accelerating the algorithm. Moreover, the convergence is improved by working with the squared field amplitude, alleviating the trap problem of local optimizers. This method allows to optimize the crosspolar component in the whole visible region or only in the coverage zone to facilitate the convergence, reduce computing time and memory usage. Two test cases are provided to validate the technique, one with an isoflux pattern for global Earth coverage and another with European coverage for DBS application.

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A Multi Facets Composite Panel Reflectarray Antenna for a Space Contoured Beam Antenna in Ku Band

Cited by 35 publications

References 21 publications

General Near Field Synthesis of Reflectarray Antennas for Their Use as Probes in Catr

General Near Field Synthesis of Reflectarray Antennas for Their Use as Probes in Catr

A large imaging array in Ka band with a substrate integrated waveguide Pillbox beamformer

Efficient Crosspolar Optimization of Shaped-Beam Dual-Polarized Reflectarrays Using Full- Wave Analysis for the Antenna Element Characterization

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