A figure of merit for losses in printed reflectarray elements

Bozzi, Maurizio; Germani,; Perregrini,

doi:10.1109/lawp.2004.836577

Cited by 35 publications

(25 citation statements)

References 5 publications

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“…Despite the considerable development in the design of different configurations of the microstrip reflectarray, it still suffers from a significant deterioration in its efficiency due to the combined effect of dielectric loss, conductor loss and surface wave excitation [3,4]. It has been shown that the dielectric loss and the conductor loss are much more significant than the losses due to the surface wave excitation [3].…”

Section: Introductionmentioning

confidence: 99%

Effect of the conductive coating thickness on performance of the microstrip reflectarray

Abbosh

2009

Micro & Optical Tech Letters

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Section: Introductionmentioning

confidence: 99%

Effect of the conductive coating thickness on performance of the microstrip reflectarray

Abbosh

2009

Micro & Optical Tech Letters

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“…The longer the path delay, the more resonant the element, and the higher the losses, according to the relationship between the resonance of a reflectarray element and its losses [9,10]. This correlation was also established experimentally for a number of reflectarray elements etched on various substrates and on a single layer composite panel [11].…”

Section: Introductionmentioning

confidence: 68%

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

Legay¹,

Bresciani²,

Labiole³

et al. 2013

PIER B

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“…The same trend is present for other slot lengths. The bandwidth is defined as the range of frequencies that correspond to phase variation with respect to the corresponding resonant frequency [13]. Higher loss and smaller bandwidth are demonstrated for the fractal configurations compared to the square patch.…”

Section: Fabrication and Measurement Resultsmentioning

confidence: 99%

Miniaturized Reflectarray Unit Cell Using Fractal-Shaped Patch-Slot Configuration

Oloumi

Ebadi

Kordzadeh³

et al. 2012

Antennas Wirel. Propag. Lett.

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This letter introduces a new class of miniaturized reflectarray unit cells with increased phase swing employing Minkowski fractal-shaped patch-slot elements. Square, 1st Minkowski, and 2nd Minkowski fractal patches are designed as a reflectarray unit cell. A slot with variable lengths of mm is used in the ground plane to perform the phase variation function. The resonant frequency corresponding to the maximum phase swing is reduced from 10.6 GHz for the square patch down to 8.8 and 8.3 GHz for the first-and second-order Minkowski fractal patches, respectively, which is equivalent to 17% and 22% size reduction. Unit cells with different patch type and slot length are fabricated, and close agreement is observed between the measured and simulated results. As it has been proven for conventional phased array antennas, this size reduction can lead to a decrease in mutual coupling in reflectarray antennas. Alternatively, it allows for smaller distance between reflectarray antenna elements, which renders a wider beam-scanning range.

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A figure of merit for losses in printed reflectarray elements

Cited by 35 publications

References 5 publications

Effect of the conductive coating thickness on performance of the microstrip reflectarray

Effect of the conductive coating thickness on performance of the microstrip reflectarray

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

Miniaturized Reflectarray Unit Cell Using Fractal-Shaped Patch-Slot Configuration

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