Independently controlling permittivity and diamagnetism in broadband, low-loss, isotropic metamaterials at microwave frequencies

Parke, L.; Hooper, Ian R.; Edwards, E. G.; Cole, Nick; Youngs, I.; Hibbins, Alastair P.; Sambles, J. R.

doi:10.1063/1.4915097

Cited by 8 publications

(5 citation statements)

References 13 publications

(14 reference statements)

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“…This design strategy is experimentally verified in Ref. [53,54] for microwaves. Also, a planarized version of the design is experimentally demonstrated at the terahertz regime showing a quasistatic high refractive index around 10 (around 40 near resonance) at THz frequencies [7] ( Figure 3B).…”

Section: Magnetic Permeabilitymentioning

confidence: 91%

Broadband metamaterials and metasurfaces: a review from the perspectives of materials and devices

Jung

Park

et al. 2020

Nanophotonics

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AbstractMetamaterials can possess extraordinary properties not readily available in nature. While most of the early metamaterials had narrow frequency bandwidth of operation, many recent works have focused on how to implement exotic properties and functions over broad bandwidth for practical applications. Here, we provide two definitions of broadband operation in terms of effective material properties and device functionality, suitable for describing materials and devices, respectively, and overview existing broadband metamaterial designs in such two categories. Broadband metamaterials with nearly constant effective material properties are discussed in the materials part, and broadband absorbers, lens, and hologram devices based on metamaterials and metasurfaces are discussed in the devices part.

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Section: Magnetic Permeabilitymentioning

confidence: 91%

Broadband metamaterials and metasurfaces: a review from the perspectives of materials and devices

Jung

Park

et al. 2020

Nanophotonics

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“…Low temperature co-fired ceramics (LTCC) applications include wireless telecommunication, electronic warfare, satellite broadcasting, and intelligent transport systems (Ziolkowski 2003;Parke et al 2015;Sebastian, Wang, and Jantunen 2016;Zhang, Whittow, and Vardaxoglou 2017;Wang et al 2018;Zhou et al 2019;Faouri et al 2019). The growth of the mobile phone market in the 1990s led to extensive research and development in temperature stable, medium permittivity dielectric ceramics with applications such as resonators in filters for microwave (MW) communications.…”

Section: Introductionmentioning

confidence: 99%

“…Artificial dielectrics and metamaterials have extraordinary properties and can control electromagnetic (EM) wave propagation and tailoring EM properties (Zhang, Whittow, and Vardaxoglou 2017). Currently, manufacturing of metamaterials is costly and time consuming as several processes are required such as micromachining, etching and assembling (Ziolkowski 2003;Parke et al 2015;Walia et al 2015). Laser AM of ceramics and metals offers an alternative manufacturing method.…”

Section: Introductionmentioning

confidence: 99%

Multi-material additive manufacturing of low sintering temperature Bi₂Mo₂O₉ceramics with Ag floating electrodes by selective laser burnout

Gheisari

Chamberlain

Chi-Tangyie

et al. 2020

Virtual and Physical Prototyping

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Additive manufacturing (AM) of co-fired low temperature ceramics offers a unique route for fabrication of novel 3D radio frequency (RF) and microwave communication components, embedded electronics and sensors. This paper describes the first-ever direct 3D printing of low temperature co-fired ceramics/floating electrode 3D structures. Slurry-based AM and selective laser burnout (SLB) were used to fabricate bulk dielectric, Bi 2 Mo 2 O 9 (BMO, sintering temperature = 620-650°C, ε r = 38) with silver (Ag) internal floating electrodes. A printable BMO slurry was developed and the SLB optimised to improve edge definition and burn out the binder without damaging the ceramic. The SLB increased the green strength needed for shape retention, produced crack-free parts and prevented Ag leaching into the ceramic during co-firing. The green parts were sintered after SLB in a conventional furnace at 645°C for 4 h and achieved 94.5% density, compressive strength of 4097 MPa, a relative permittivity (ε r) of 33.8 and a loss tangent (tan δ) of 0.0004 (8 GHz) for BMO. The feasibility of using SLB followed by a postprinting sintering step to create BMO/Ag 3D structures was thus demonstrated.

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“…Manufacturing metamaterials with metallic inclusions is cumbersome. It usually involves several processes such as micromachining, etching and assembling [18][19][20]. A simple manufacturing technique is highly desirable.…”

Section: Introductionmentioning

confidence: 99%

Additively manufactured artificial materials with metallic meta‐atoms

Zhang

Whittow

Vardaxoglou

2017

IET Microwaves, Antennas & Propagation

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This study presents the analysis and fabrication of artificial materials with metallic cuboid inclusions (termed here as meta-atoms) in a dielectric host material. These synthetic materials or metamaterials have been additively manufactured with a fused deposition modelling three-dimensional (3D) printer. The effective permittivity and permeability have been numerically analysed using the Maxwell-Garnett and Lewin's approximation. Simulations and measurements have shown good agreement with analytical calculations. The anisotropy of the heterogeneous mixture due to the orientation of the meta-atoms has been demonstrated. The effective permittivity has been increased by the presence of the meta-atoms, which has the potential of producing 3D-printing metamaterials with tailored electromagnetic properties.

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Independently controlling permittivity and diamagnetism in broadband, low-loss, isotropic metamaterials at microwave frequencies

Cited by 8 publications

References 13 publications

Broadband metamaterials and metasurfaces: a review from the perspectives of materials and devices

Broadband metamaterials and metasurfaces: a review from the perspectives of materials and devices

Multi-material additive manufacturing of low sintering temperature Bi₂Mo₂O₉ceramics with Ag floating electrodes by selective laser burnout

Additively manufactured artificial materials with metallic meta‐atoms

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Independently controlling permittivity and diamagnetism in broadband, low-loss, isotropic metamaterials at microwave frequencies

Cited by 8 publications

References 13 publications

Broadband metamaterials and metasurfaces: a review from the perspectives of materials and devices

Broadband metamaterials and metasurfaces: a review from the perspectives of materials and devices

Multi-material additive manufacturing of low sintering temperature Bi2Mo2O9ceramics with Ag floating electrodes by selective laser burnout

Additively manufactured artificial materials with metallic meta‐atoms

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Product

Resources

About

Multi-material additive manufacturing of low sintering temperature Bi₂Mo₂O₉ceramics with Ag floating electrodes by selective laser burnout