Experimental characterization of graphene by electrostatic resonance frequency tuning

2017 ◽  
Vol 122 (23) ◽  
pp. 234302 ◽  
Author(s):  
Banafsheh Sajadi ◽  
Farbod Alijani ◽  
Dejan Davidovikj ◽  
Johannes (Hans) Goosen ◽  
Peter G. Steeneken ◽  
...  
Keyword(s):  
Resonance Frequency ◽  
Frequency Tuning ◽  
Experimental Characterization

scholarly journals Simple, Compact, and Multiband Frequency Selective Surfaces Using Dissimilar Sierpinski Fractal Elements

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Clarissa de Lucena Nóbrega ◽  
Marcelo Ribeiro da Silva ◽  
Paulo Henrique da Fonseca Silva ◽  
Adaildo Gomes D’Assunção ◽  
Gláucio Lima Siqueira
Keyword(s):  
High Frequency ◽  
Design Methodology ◽  
Frequency Tuning ◽  
Microstrip Antennas ◽  
Frequency Selective Surfaces ◽  
Experimental Characterization ◽  
Spatial Filters ◽  
Frequency Responses ◽  
Frequency Selective

This paper presents a design methodology for frequency selective surfaces (FSSs) using metallic patches with dissimilar Sierpinski fractal elements. The transmission properties of the spatial filters are investigated for FSS structures composed of two alternately integrated dissimilar Sierpinski fractal elements, corresponding to fractal levelsk=1, 2, and 3. Two FSS prototypes are fabricated and measured in the range from 2 to 12 GHz to validate the proposed fractal designs. The FSSs with dissimilar Sierpinski fractal patch elements are printed on RT/Duroid 6202 high frequency laminate. The experimental characterization of the FSS prototypes is accomplished through two different measurement setups composed of commercial horns and elliptical monopole microstrip antennas. The obtained results confirm the compactness and multiband performance of the proposed FSS geometries, caused by the integration of dissimilar fractal element. In addition, the proposed FSSs exhibited frequency tuning ability on the multiband frequency responses. Agreement between simulated and measured results is reported.

Experimental Characterization of the Reliability of 3-Terminal Dual-Damascene Copper Interconnect Trees

2002 ◽  
Vol 716 ◽  
Author(s):  
C. L. Gan ◽  
C. V. Thompson ◽  
K. L. Pey ◽  
W. K. Choi ◽  
F. Wei ◽  
...  
Keyword(s):  
Stress Conditions ◽  
Experimental Characterization ◽  
Contact Lines ◽  
Tree Structures ◽  
Similar Test ◽  
Dual Damascene ◽  
Copper Interconnect ◽  
Test Conditions

AbstractElectromigration experiments have been carried out on simple Cu dual-damascene interconnect tree structures consisting of straight via-to-via (or contact-to-contact) lines with an extra via in the middle of the line. As with Al-based interconnects, the reliability of a segment in this tree strongly depends on the stress conditions of the connected segment. Beyond this, there are important differences in the results obtained under similar test conditions for Al-based and Cu-based interconnect trees. These differences are thought to be associated with variations in the architectural schemes of the two metallizations. The absence of a conducting electromigrationresistant overlayer in Cu technology, and the possibility of liner rupture at stressed vias lead to significant differences in tree reliabilities in Cu compared to Al.

Experimental Characterization of Mechanical Behavior of Cord-Rubber Composites

1982 ◽  
Vol 10 (1) ◽  
pp. 37-54 ◽  
Author(s):  
M. Kumar ◽  
C. W. Bert
Keyword(s):  
Response Characteristic ◽  
Cord Compression ◽  
Complete Characterization ◽  
Strain Response ◽  
Strain Gages ◽  
Experimental Characterization ◽  
Rubber Composites ◽  
Stress Strain ◽  
Strain Data

Abstract Unidirectional cord-rubber specimens in the form of tensile coupons and sandwich beams were used. Using specimens with the cords oriented at 0°, 45°, and 90° to the loading direction and appropriate data reduction, we were able to obtain complete characterization for the in-plane stress-strain response of single-ply, unidirectional cord-rubber composites. All strains were measured by means of liquid mercury strain gages, for which the nonlinear strain response characteristic was obtained by calibration. Stress-strain data were obtained for the cases of both cord tension and cord compression. Materials investigated were aramid-rubber, polyester-rubber, and steel-rubber.

Turbulence ingestion noise. I - Experimental characterization of grid-generated turbulence

AIAA Journal ◽  
2002 ◽  
Vol 40 ◽  
pp. 16-25
Author(s):  
J. P. Wojno ◽  
T. J. Mueller ◽  
W. K. Blake
Keyword(s):  
Experimental Characterization
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