An origami tunable metamaterial

Fuchi, Kazuko; Diaz, Alfredo Peña; Rothwell, Edward J.; Ouedraogo, Raoul O.; Tang, Junyan

doi:10.1063/1.4704375

Cited by 48 publications

(35 citation statements)

References 18 publications

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“…However, many desired 3D structures demand spatial localization of the bending, as in the case of origami. Engineered variation in thickness was found to be able to guide folding deformation at specific locations and thus provided such capability . Simulation of the self‐assembly process proved that when the thickness ratio was relatively small (e.g., <1/3), the thick regions underwent negligible deformation while the thin ones accommodated the compression via folding, and the maximum strains occured at these regions (so‐called crease) .…”

Section: Nanomembrane Origamimentioning

confidence: 99%

Assembly and Self‐Assembly of Nanomembrane Materials—From 2D to 3D

Huang

Mei

2018

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Nanoscience and nanotechnology offer great opportunities and challenges in both fundamental research and practical applications, which require precise control of building blocks with micro/nanoscale resolution in both individual and mass-production ways. The recent and intensive nanotechnology development gives birth to a new focus on nanomembrane materials, which are defined as structures with thickness limited to about one to several hundred nanometers and with much larger (typically at least two orders of magnitude larger, or even macroscopic scale) lateral dimensions. Nanomembranes can be readily processed in an accurate manner and integrated into functional devices and systems. In this Review, a nanotechnology perspective of nanomembranes is provided, with examples of science and applications in semiconductor, metal, insulator, polymer, and composite materials. Assisted assembly of nanomembranes leads to wrinkled/buckled geometries for flexible electronics and stacked structures for applications in photonics and thermoelectrics. Inspired by kirigami/origami, self-assembled 3D structures are constructed via strain engineering. Many advanced materials have begun to be explored in the format of nanomembranes and extend to biomimetic and 2D materials for various applications. Nanomembranes, as a new type of nanomaterials, allow nanotechnology in a controllable and precise way for practical applications and promise great potential for future nanorelated products.

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Section: Nanomembrane Origamimentioning

confidence: 99%

Assembly and Self‐Assembly of Nanomembrane Materials—From 2D to 3D

Huang

Mei

2018

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“…Notable examples demonstrate that origami can offer guidance to the design of spatially reconfigurable devices. Application of this design concept in radio-frequency (RF) devices is particularly relevant as the electromagnetic (EM) interactions of RF components are sensitive to geometry and relative spacing of conductive elements [6,7].…”

Section: Introductionmentioning

confidence: 99%

Spatial tuning of a RF frequency selective surface through origami

et al. 2016

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Origami devices have the ability to spatially reconfigure between 2D and 3D states through folding motions. The precise mapping of origami presents a novel method to spatially tune radio frequency (RF) devices, including adaptive antennas, sensors, reflectors, and frequency selective surfaces (FSSs). While conventional RF FSSs are designed based upon a planar distribution of conductive elements, this leaves the large design space of the out of plane dimension underutilized. We investigated this design regime through the computational study of four FSS origami tessellations with conductive dipoles. The dipole patterns showed increased resonance shift with decreased separation distances, with the separation in the direction orthogonal to the dipole orientations having a more significant effect. The coupling mechanisms between dipole neighbours were evaluated by comparing surface charge densities, which revealed the gain and loss of coupling as the dipoles moved in and out of alignment via folding. Collectively, these results provide a basis of origami FSS designs for experimental study and motivates the development of computational tools to systematically predict optimal fold patterns for targeted frequency response and directionality.

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“…In addition to local field concentrated around gap, electric field is also confined between the remaining two parts of gap-bearing arm, forming an extra origami-type capacitor. 27 Even local field intensity is still lower than that around the gap, this extra capacitance should be taken into account because of its much larger size than the gap. As such extra capacitance is in parallel connected to the gap capacitance and increases dramatically with smaller radius, it will not only compensate the decrease of gap capacitance but also further enhance the whole capacitance of SRR.…”

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confidence: 99%

Conductive rubber based flexible metamaterial

Zhang

Liu

Qiu

et al. 2015

Applied Physics Letters

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In this letter, we present experimentally flexible split ring resonator (SRR) metamaterial made of conductive rubber. Different from most conventional flexible metamaterials whose mechanical advantage relied on ultrathin soft substrates, compliance property of conductive rubber based SRR results from its intrinsic property. Experimental results show that unique property of negative effective parameter is preserved by conductive rubber based SRR. Moreover, strain property of conductive rubber not only allows SRR to be compliant but also provides extra means to frequency tunability. When SRR is deformed along its symmetric axis, an extra capacitance is formed by gap-bearing side, resulting in a decreasing resonance trend with enhanced deformation.

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An origami tunable metamaterial

Cited by 48 publications

References 18 publications

Assembly and Self‐Assembly of Nanomembrane Materials—From 2D to 3D

Assembly and Self‐Assembly of Nanomembrane Materials—From 2D to 3D

Spatial tuning of a RF frequency selective surface through origami

Conductive rubber based flexible metamaterial

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