Design Considerations for a Meshed Carbon Nanotube Thread Patch Antenna

Keller, Steven D.; Zaghloul, Amir I.; Shanov, Vesselin; Schulz, Mark J.; Mast, David

doi:10.1109/lawp.2013.2282176

Cited by 11 publications

(4 citation statements)

References 16 publications

(13 reference statements)

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“…To further increase the gain value of the antenna, the substrate materials with lower dielectric loss: such as quartz fiber, D‐glass fiber, polytetrafluoroethylene or polyimide resin could be adopted to decrease the dielectric loss. In addition, a tighter woven structure and smaller sizes (or higher resonant frequency) of the radiation patches of textile structured antennas may also reduce the conductive loss caused by the discontinuous conductive grid pattern .…”

Section: Resultsmentioning

confidence: 99%

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Electromagnetic performance and impact damage of the microstrip antennas integrated in cylindrical three dimensional woven composite structures

Sun

Zhang

et al. 2017

Polymer Composites

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A three dimensional integrated microstrip antenna (3DIMA) is a novel multifunctional structure, which can perform as a load bearing structure and function as an antenna. In this study, a single-element and a double-element microstrip antenna were integrated into cylindrical three-dimensional woven glass fiber/epoxy composites respectively. Their electromagnetic performance and impact damage were investigated. The results showed that with the decrease of the curvature radii from 75 to 25 mm, the single-element 3DIMAs with the feed direction perpendicular to the curvature showed more stable resonant frequencies and gain values than those of 3DIMAs with the feed direction parallel to the curvature. While the opposite results were observed for the double-element 3DIMAs. The doubleelement cylindrical 3DIMAs with the feed direction parallel to the curvature showed the best voltage standing wave ratios (VSWR < 1.25), resonant frequencies (near 1.5 GHz), gains (from 2.37 to 1.44 dB) and reasonable radiation pattern properties. In addition, impact tests were conducted with the impact energies ranging from 0 to 20 J. The results showed that the VSWRs slightly changed, demonstrating good impact resistance, and structural integrity of cylindrical 3DIMA structure. POLYM. COMPOS., 00:000-000, 2017.

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Section: Resultsmentioning

confidence: 99%

“…The conformal microstrip antenna has many advantages, such as smaller air drag, reduced radar cross‐section, more extra space, and larger angular coverage . However, due to the complexity of simulation and fabrication, the technology and analysis tools for conformal microstrip antenna were not fully established.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic performance and impact damage of the microstrip antennas integrated in cylindrical three dimensional woven composite structures

Sun

Zhang

et al. 2017

Polymer Composites

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“…Besides the conventional PCB printed copper mesh, meshed antennas have also been realized in other ways, such as through use of carbon nanotubes, and conductive threads. The authors in [8] developed aperture coupled patch antenna that was fabricated using carbon nanotube thread. They analyzed the effects of thread spacing when a mesh is applied to the feedline and ground plane.…”

Section: Introductionmentioning

confidence: 99%

Meshed Stacked LTCC Antenna for Space Application

Ahmad

Olule

2022

IEEE Access

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Meshed conductors have been used to realize antenna systems. Previous studies have concentrated on single layer patch designs. In this paper, different mesh configurations of stacked meshed patch antennas are studied; when both patches are meshed, when only the top patch is meshed, when only the bottom patch is meshed and when both patches are continuous solid metal. In addition, the effect of conventional slot loading on stacked mesh patches is also investigated through parametric studies. The designs are fed by coaxial feed probe in the lower patch. The results showed that the stacked mesh performance in terms of the resonant frequency, return loss, gain and radiation efficiency can be comparable to that of a typical continuous metal stacked design. Both patches are 20.86 mm x 21.46 mm. The maximum absolute gain and radiation efficiency of the solid stacked patch were 5.05 dBi and 91.6% while those of the meshed stacked patch were 5.22 dBi and 91.8% respectively. The measurements of the antenna with two stacked meshed patches showed that the antenna was resonant at 2.52 GHz with a reflection coefficient in dB of -23.69 dB. It has a 40 MHz -10 dB impedance bandwidth (1.5%) from 2.50 GHz to 2.54 GHz. The antenna exhibited a maximum measured gain of -0.12 dBi and cross polarization of 10 dB at boresight. An equivalent circuit model for the design is also proposed. The antenna is developed for space application and therefore it was implemented using Low Temperature Co-fired Ceramic (LTCC) technology as the LTCC properties can withstand the harsh environment of space. Although the meshed lines increase the line impedance and therefore can results in increased losses, this can be mitigated by careful mesh selection. Lastly, the meshed design allows for better bonding between the LTCC tape layers.

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“…[31][32][33] By the same method, CNT yarns and lms were applied to electrical antenna, gas sensor. 34,35 Another way to produce highly aligned yarns is to use the wet spinning method based on the chemical inertness and agglomeration of CNTs dispersed in super-acids. 36,37 CNT laments are then produced by extruding super-acids through a spinneret into a coagulation solution such as water or acetone.…”

Section: Introductionmentioning

confidence: 99%