Circularly-polarised microstrip leaky-wave antenna

Xue, Quan; Yung, E.K.N.; Long, Yunliang

doi:10.1049/el:20070778

Cited by 11 publications

(14 citation statements)

References 6 publications

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“…LWAs which are symmetrically fed from its center position, and which present optimized broadside radiation when the leaky-mode satisfies the splitting condition [Chen 1998], [Yamamoto 1999], ], [Li 2007], [Sutinjo 2008], [Komanduri 2010]. To this author´s knowledge, all previously reported designs of broadside-directed 1D LWAs are not tapered, and therefore, only exponential amplitude aperture illuminations are obtained.…”

Section: Lwamentioning

confidence: 97%

“…4.4.3(b). Two possible solutions have been proposed to deal with this non-radiated power: 1) to place matched loads at the antenna's edges to absorb it ], [Li 2007], [Sutinjo 2008], [Komanduri 2010], or 2) to use open or short circuited terminations [Chen 1998], [Yamamoto 1999]. In the first case, the radiation efficiency ( ) falls as is increased (i.e., as is decreased).…”

Section: Lwamentioning

confidence: 99%

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Analysis and design of hybrid leaky-wave antennas loaded with frequency selective surfaces

Garcia-Vigueras¹

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vii "Cuando creíamos que teníamos todas las respuestas, de pronto, cambiaron todas las preguntas." Mario Benedetti IX AcknowledgementsLa realización de esta tesis ha significado para mí uno de los periodos de mayor crecimiento personal y profesional. Durante este proceso de evolución y cambios, he contado con el cariño, la ayuda y el apoyo de grandes personas, lo que me hace sentir profundamente afortunada.Sin lugar a dudas quiero comenzar por José Luis; tu intuición y criterio han sido fundamentales en este proyecto. Gracias por haber confiado en mí, compartiendo desde el primer día tanta ilusión, tiempo y esfuerzo. Espero poder seguir aprendiendo contigo, dire.También ha sido inestimable la ayuda de los profesores

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Section: Lwamentioning

confidence: 97%

Section: Lwamentioning

confidence: 99%

Analysis and design of hybrid leaky-wave antennas loaded with frequency selective surfaces

Garcia-Vigueras¹

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“…Principally, three different ways to obtain this broadside radiation (θ = 0 • ) can be distinguished: I-With uniform-type LWAs satisfying the splitting condition (β = α) [188], [195], [196], II-Using the 1st high-order harmonic in periodic configurations [133], [197]- [201], and more recently III-By means of metamaterials [76], [202], [203]. Typically, most of these configurations have been based on one-dimensional (1D) LWAs, which provide a fan-beam radiation pattern [82].…”

Section: Introductionmentioning

confidence: 99%

“…However, a pencil beam radiation pattern can also be obtained when several LWAs line-sources are suitably arranged in a 2D plane and fed symmetrically [82], [133], [196], [200], [201], [204].…”

Section: Introductionmentioning

confidence: 99%

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Analysis and synthesis of leaky-wave devices in planar technology

Ros¹,

Javier²

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List of Figures 4.22 Theoretical, simulated and measured radiation patterns at the design frequency of 15 GHz for the conventional rectilinear HMLWA. 4.23 Theoretical, simulated and measured radiation patterns at the design frequency of 15 GHz for the conformal non-tapered HMLWA. 4.24 Theoretical, simulated and measured radiation patterns at the design frequency of 15 GHz for the conformal tapered HMLWA.. . 4.25 Theoretical, simulated and measured radiation patterns at the design frequency of 15 GHz for the conformal tapered SIW LWA.. .

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Pencil beam radiation pattern from a single‐layer substrate‐integrated waveguide leaky‐wave antenna with simple feeding

Martín

Gómez‐Tornero

Goussetis

2015

IET Microwaves, Antennas & Propagation

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A central feeding array radiating at broadside and manufactured in substrate‐integrated waveguide (SIW) technology is shown in this work. The single‐layer array consists of N = 8 line‐source leaky‐wave antennas (LWAs), which are designed to satisfy the splitting condition (α = β) of the leaky mode. The LWAs are arranged in a radial configuration, in this manner, by properly designing the SIW width W and the spacing between SIW vias P for each SIW LWA, the leaky mode can be independently controlled to fulfil the splitting condition, and all the individual beams from each SIW LWA can merge into one at broadside direction (θ = 0°) for a given design frequency. The two‐dimensional radiating surface allows obtaining a pencil beam radiation pattern, which is linearly polarised because of the radial arrangement. A prototype with a radiating length of LA = 60 mm for each SIW LWA, and a total radius of R = 73 mm has been manufactured for a design frequency of 15 GHz. Input matching, gain and radiation patterns at several planes have been measured and compared with full‐wave simulations, obtaining good agreement between them.

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Circularly-polarised microstrip leaky-wave antenna

Cited by 11 publications

References 6 publications

Analysis and design of hybrid leaky-wave antennas loaded with frequency selective surfaces

Analysis and design of hybrid leaky-wave antennas loaded with frequency selective surfaces

Analysis and synthesis of leaky-wave devices in planar technology

Pencil beam radiation pattern from a single‐layer substrate‐integrated waveguide leaky‐wave antenna with simple feeding

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