Triangular grid interconnected crossed rings antenna for large‐scale ultra‐wideband dual‐polarised arrays

Zhang, Yongwei; Shi, Quan; El-Makadema, Ahmed; Danoon, Laith; Brown, Anthony K.

doi:10.1049/iet-map.2019.0869

Cited by 3 publications

(2 citation statements)

References 20 publications

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“…Além desse modelo de grade, existem na literatura trabalhos que fazem uso da grade triangular lattice, e.g. [9] e [10], com 3 direções (vertical Dados de contato: Tanilson Dias dos Santos, tanilson.dias@uft.edu.br e com duas diagonais), veja Figura 1(b). No contexto deste projeto estudaremos as representações de grafos de interseção de arestas sobre uma grade triangular com 3 direções (horizontal, vertical e uma diagonal), denotadas como B k -EPG t , veja Figura 1(c).…”

Section: Introductionunclassified

Uma Breve Investigação dos Grafos B1-EPGt

Pereira dos Santos,

Santos

2023

Acad. Journal on Comp., Eng. and Appl. Math.

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Os grafos EPG correspondem exatamente à classe de grafos de aresta-interseção de caminhos sobre uma grade. A maioria dos resultados na literatura envolvendo grafos EPG consideram problemas onde o hospedeiro da representação é uma grade retangular simples que possui somente duas direções (horizontal e vertical). Neste trabalho de conclusão de curso iremos explorar uma nova classe dos grafos EPG, pouco estudada na literatura, os grafos B1-EPGt . Definida como a classe dos grafos de aresta-interseção cujos caminhos possuem no máximo uma dobra e o hospedeiro da representação é uma grade triangular com 3 direções(horizontal, vertical e uma diagonal). Esta pesquisa contém resultados iniciais inéditos sobre a exploração da classe B1-EPGt e apresenta pontos interessantes para continuação da investigação.

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Section: Introductionunclassified

Uma Breve Investigação dos Grafos B1-EPGt

Pereira dos Santos,

Santos

2023

Acad. Journal on Comp., Eng. and Appl. Math.

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“…Tightly coupled dipole arrays (TCDA) have demonstrated broad bandwidth characteristics, high polarization purity, and low profile. However, the total height of the array is constrained by the separation between the array elements and the ground plane [19] [20]. The minimum height of TCDA was reported as slightly shorter than a quarter wavelength of the highest operational frequency [21] [22].…”

Section: Introductionmentioning

confidence: 99%

A Foldable Tightly Coupled Crossed Rings Antenna Array of Ultrawide Bandwidth and Dual Polarization

Zhang

Shi

et al. 2022

IEEE Access

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Low-profile foldable array antennas are becoming increasingly more important for a wide range of applications such as satellite communications and wearable electronic devices. The conventional arrays formed by patch-like antennas have been extensively studied on surfaces with a curvature but they have exhibited limited bandwidth and polarization performance. This study investigates a coupling enhanced crossed rings antenna array with two typical configurations for dual polarization, which inherently produces ultrawide bandwidth, dipole-like polarization characteristics and a fully curved array (FCA) eventually. The fractional bandwidth of the array is over 100% on a planar surface and expanded to approximately 140% on the curved surface. For the bent array of slant polarization, the beamwidth increases by over 20 • compared to the planar array and cross polarization discrimination (XPD) maintains above 15 dB. The effects of curvature on the impedance matching and polarized radiation patterns for such arrays are investigated by measuring the performance of the fabricated prototype arrays. The results revealed that the tightly coupled crossed rings antenna array on a curved surface has a potential to form multiple beams on a limited aperture size through smaller subarrays which can yield ultrawide bandwidth due to concentrated mutual coupling mechanism. This characteristic is promising in applications where traditional flat panel arrays are difficult to implement such as in mobile stations, moving platforms and for satellite communication on-the-move.

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Passive Reconfigurable Dual Linear and Dual Circular Polarization with CLRH-TL for Triangular Microstrip Patch Array

Dacey,

Venkataraman

2023

2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI)

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Triangular grid interconnected crossed rings antenna for large‐scale ultra‐wideband dual‐polarised arrays

Cited by 3 publications

References 20 publications

Uma Breve Investigação dos Grafos B1-EPGt

Uma Breve Investigação dos Grafos B1-EPGt

A Foldable Tightly Coupled Crossed Rings Antenna Array of Ultrawide Bandwidth and Dual Polarization

Passive Reconfigurable Dual Linear and Dual Circular Polarization with CLRH-TL for Triangular Microstrip Patch Array

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