Digital Reflectarray Considerations for Terrestrial Millimeter-Wave Imaging

Dietlein, Charles; Hedden, Abigail; Wikner, David A.

doi:10.1109/lawp.2012.2189545

Cited by 20 publications

(8 citation statements)

References 10 publications

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“…It consists of a planar arrangement of resonant elements printed on a conductorbacked dielectric substrate. In recent, a reflectarray has been applied to a lot of application such as deployable reflector antennas [2], millimeter-wave imaging systems [3] and FSR (frequency selective reflector) to improve communication environment for blind area [4].…”

Section: Introductionmentioning

confidence: 99%

Arbitrarily-Shaped Reflectarray Resonant Elements for Dual-Polarization Use and Polarization Conversion

Deguchi

Higashi

Yamada

et al. 2018

IEICE Trans. Commun.

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SUMMARY This paper proposes a genetic algorithm (GA) based design method for arbitrarily-shaped resonant elements that offer enhanced reflectarray antenna performance. All elements have the specified phase property over the range of 360 • , and also have dual-polarization and low cross-polarization properties for better reflectarray performance. In addition, the proposal is suitable for linear-to-circular polarization conversion elements. Thus, polarizer reflectarray elements are also presented in this paper. The proposed elements are validated using both numerical simulations and experiments.

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Section: Introductionmentioning

confidence: 99%

Arbitrarily-Shaped Reflectarray Resonant Elements for Dual-Polarization Use and Polarization Conversion

Deguchi

Higashi

Yamada

et al. 2018

IEICE Trans. Commun.

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“…The phase distribution on its aperture is controlled by arranging various resonant elements with different resonant frequency, thereby changing the reflecting direction. In recent years, reflectarrays have been applied to a lot of applications such as deployable reflector antennas [2], millimeter-wave imaging systems [3] and FSR(frequency selective reflector) to eliminate blind area [4]. In general, wideband, dual-polarization and low cross-polarization properties are required for a reflectarray.…”

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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“…Recently, many studies of reflectarrays have been carried out for various applications such as millimeter imaging systems, and deployable antennas for satellite systems [1,2]. The GA(genetic algorithm) optimization for reflectarrays is one of useful design methods [3].…”

Section: Introductionmentioning

confidence: 99%

Optimization design method of arbitrarily shaped elements for wideband reflectarrays

2018

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Abstract:In this paper, the authors have proposed an optimization design method for arbitrarily shaped resonant elements with wideband property and have constructed an offset-feed reflectarray by the optimized elements in the X band. Its radiation pattern has been also investigated numerically and experimentally. Usefulness of the proposed method has been proved from comparison between the measured radiation pattern and the calculated ones.

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Digital Reflectarray Considerations for Terrestrial Millimeter-Wave Imaging

Cited by 20 publications

References 10 publications

Arbitrarily-Shaped Reflectarray Resonant Elements for Dual-Polarization Use and Polarization Conversion

Arbitrarily-Shaped Reflectarray Resonant Elements for Dual-Polarization Use and Polarization Conversion

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

Optimization design method of arbitrarily shaped elements for wideband reflectarrays

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