On the Optimal Design of Fractal Tuning Stub UWB Patch Antenna with Band-Notched Function

2018 ◽  
Author(s):  
Amar Partap Singh Pharwaha ◽  
Sushil Kakkar ◽  
Tara Singh Kamal
Keyword(s):  
Optimal Design ◽  
Patch Antenna

Optimal Design of Stretchable Electronics With the Consideration of Response Variability

2017 ◽  
Author(s):  
Sungkun Hwang ◽  
Seung-Kyum Choi
Keyword(s):  
Neural Network ◽  
Optimal Design ◽  
Patch Antenna ◽  
Probabilistic Neural Network ◽  
Decision Criterion ◽  
Reliability Estimation ◽  
Ultra Wideband ◽  
Stretchable Electronics ◽  
Computational Costs ◽  
Design Variables

Strain gauges based on the micro-strip patch antenna have been increasingly employed in structural health monitoring. However, the lower bandwidth, influenced by the antenna’s geometric properties, limits efficiency of the antenna when major strain, creating drastic variation of the resonant frequency, is applied. The performance of the antenna cannot be guaranteed without also considering the substrate’s varying thickness, caused by manual fabrication and printing procedure. However, all such considerations lead to an increase of multivariate design variables, that in turn, increase uncertainty and computational costs. Thus, the proposed research develops a framework that accurately models the geometric variables of the antenna and efficiently reduces the multivariate dimensions that draw uncertainty preventing accurate system reliability estimation. In the proposed framework, a dimension reduction method is thoroughly conducted by utilizing a critical decision criterion depending on the degree of correlation. Specifically, artificial neural network and probabilistic neural network are employed to correctly estimate the variability of complex system responses. Furthermore, an optimal design of the stretchable patch antenna is developed. This design will allow frequency shifts under tensile strain and still remain within reliable frequency ranges. The proposed approach is beneficial to the process of capturing and managing antenna design variables. The presented example clearly demonstrates the advantage of the obtained optimal design of the stretchable patch antenna compared to an ultra-wideband radar system that often requires complicated design processes and high computational costs.

Optimal design and experiment on high power wideband patch antenna

2010 ◽  
Vol 22 (10) ◽  
pp. 2388-2392
Author(s):  
徐刚 Xu Gang ◽  
廖勇 Liao Yong ◽  
谢平 Xie Ping ◽  
张现福 Zhang Xianfu ◽  
孟凡宝 Meng Fanbao ◽  
...  
Keyword(s):  
Optimal Design ◽  
High Power ◽  
Patch Antenna

Crack divergence phenomena in tempered glass

2020 ◽  
Vol 13 (3) ◽  
pp. 115-129
Author(s):  
Shin’ichi Aratani
Keyword(s):  
Optimal Design ◽  
High Speed ◽  
Glass Plate ◽  
Acute Angle ◽  
Divergence Angle ◽  
High Speed Photography ◽  
Tempered Glass ◽  
Thick Glass

High speed photography using the Cranz-Schardin camera was performed to study the crack divergence and divergence angle in thermally tempered glass. A tempered 3.5 mm thick glass plate was used as a specimen. It was shown that two types of bifurcation and branching existed as the crack divergence. The divergence angle was smaller than the value calculated from the principle of optimal design and showed an acute angle.

G Optimal Design in Non linear Models to Increase Silicon Oxide Purity Levels and Electrical Conductivity

2018 ◽  
pp. 150-155
Author(s):  
Muklas Rivai
Keyword(s):  
Electrical Conductivity ◽  
Optimal Design ◽  
Linear Models ◽  
Silicon Oxide ◽  
Information Matrix ◽  
Relevant Information ◽  
Non Linear

Optimal design is a design which required in determining the points of variable factors that would be attempted to optimize the relevant information so that fulfilled the desired criteria. The optimal fulfillment criteria based on the information matrix of the selected model.

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