A see-through wire-grid film antenna for WLAN applications

Guan, Ning; Furuya, Hirotaka; Hosono, Ryouhei; Tayama, Hiroiku; Yamagami, K.

doi:10.1109/apcap.2012.6333251

Cited by 9 publications

(3 citation statements)

References 1 publication

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“…ITO film)-within the antenna design, a compromise must be made between the light transmittance and surface impedance [209]; (b) Multilayer silver-coated polyester thin film (such as AgHT series)-compared with ITO film, the AgHT film has better conductivity and worse transmittance [210]; (c) An ultrathin metal film made of Cu, Ag, Au, and other metal conductors-such antennas have high radiation efficiency and pretty low light transmittance [211]; (d) Metal mesh antenna it demonstrates the highest radiation efficiency and light transmittance higher than that of the ultrathin metal film. However, it has high requirements for processing technology [212,213].…”

Section: Optically Transparent Antennas (Microstrip Patch)mentioning

confidence: 99%

Metal oxide nanoparticles and their applications in nanotechnology

2019

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Considering metal oxide nanoparticles as important technological materials, authors provide a comprehensive review of researches on metal oxide nanoparticles, their synthetic strategies, and techniques, nanoscale physicochemical properties, defining specific industrial applications in the various fields of applied nanotechnology. This work expansively reviews the recent developments of semiconducting metal oxide gas sensors for environmental gases including CO 2 , O 2 , O 3 , and NH 3 ; highly toxic gases including CO, H 2 S, and NO 2 ; combustible gases such as CH 4 , H 2 , and liquefied petroleum gas; and volatile organic compounds gases. The gas sensing properties of different metal oxides nanoparticles towards specific target gases have been individually discussed. Promising metal oxide nanoparticles for sensitive and selective detection of each gas have been identified. This review also categorizes metal oxides sensors by analyte gas and also summarizes the major techniques and synthesis strategies used in nanotechnology. Additionally, strategies, sensing mechanisms and related applications of semiconducting metal oxide materials are also discussed in detail. Related applications are innumerable trace to ultratrace-level gas sensors, batteries, magnetic storage media, various types of solar cells, metal oxide nanoparticles applications in catalysis, energy conversion, and antennas (including microstrip and patch-type optically transparent antennas), rectifiers, optoelectronic, and electronics.

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Section: Optically Transparent Antennas (Microstrip Patch)mentioning

confidence: 99%

Metal oxide nanoparticles and their applications in nanotechnology

2019

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“…Other less conventional or popular methods exist, each with their own limitations and benefits. Some researchers have simply used commercially available metal meshes cut in a desired antenna shape, which tend to have thicker line widths at or above 15 μm [21], [22]. Others have fabricated similar periodic meshed conductors with zone exposure and nanoparticle deposition and annealing [15], electroplating and scraping [23], localized dynamic wrinkling [24], graphene patterning [16], polymer masks followed by wet etching [25], and imprint lithography processes [11], [7], [23], [26].…”

Section: Meshed Conductor Fabrication Reviewmentioning

confidence: 99%

Fabrication of optically transparent millimeter-wave micromesh structures

Zyl

Silva²,

Luk³

et al. 2023

Autonomous Systems: Sensors, Processing and Security for Ground, Air, Sea, and Space Vehicles and Infrastructure 2023

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Global trends toward mobility and miniaturization along with increasing demands to improve the performance and efficiency of sensor systems, especially in autonomous systems, have led to a need to decrease their size, weight, and power (SWaP). For millimeter wave (mmWave) and optical sensing, optically transparent mmWave antennas provide a solution to meet this need by offering a multi-modal, single aperture system with applications in vehicle windshields, solar cells on satellites, and drone camera lenses, among others. However, integrating these sensing systems while optimizing both the mmWave properties and optical sensing capabilities forces competing design and fabrication requirements. Currently, there also exists limited research and literature on a fabrication procedure for these micromesh structures. This paper presents a photolithographic procedure for fabricating micro-scale optically transparent mmWave transmission lines (TLs) and antennas suitable for use in the design optimization processes. It investigates the fabrication of varying line width versus line gap dimensions as well as the fabrication of different mesh unit cell designs. The fabrication procedure was designed to achieve down to 1-2 μm features and is replicable for both single-sided and dual-sided designs. The fabricated micro-mesh structures exhibit strong performance in both operating regimes, having optical transmittance ranging from 80-95% transmittance in the visible spectrum and high conductivity with sheet resistance less than 1 ohmper-square.

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“…But the requirements for the processing technology of this material are very high [9][10][11]. Considering the light transmittance, conductivity, and processing technology of the four materials, ITO film is the best choice.…”

Section: Introductionmentioning

confidence: 99%

Design of Optically Transparent Antenna with Directional Radiation Patterns

Yao

Chen

et al. 2017

International Journal of Antennas and Propagation

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An optically transparent antenna with directional radiation pattern is proposed in this paper. This antenna consists of a radiation patch above the transparent glass substrate and a frequency selective surface acting as the ground of microstrip antenna on the back of the glass. The frequency selective surface (FSS) performs well as ground in the working frequency range to achieve directional radiation pattern. A SMA connector is used to feed the antenna. The antenna can operate at the on-board dedicated short-range communication band from 5.725 GHz to 5.85 GHz. Simulations and measurements are carried out to study the antenna performances in terms of impedance matching, gain, and radiation patterns. Both of the simulation and measurement results are shown to illustrate the good performance of the proposed antenna. It is very suitable for car network communication scene.

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A see-through wire-grid film antenna for WLAN applications

Cited by 9 publications

References 1 publication

Metal oxide nanoparticles and their applications in nanotechnology

Metal oxide nanoparticles and their applications in nanotechnology

Fabrication of optically transparent millimeter-wave micromesh structures

Design of Optically Transparent Antenna with Directional Radiation Patterns

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