A fast and flexible library-based thick-mask near-field calculation method

2015 ◽  
Author(s):  
Xu Ma ◽  
Jie Gao ◽  
Xuanbo Chen ◽  
Lisong Dong ◽  
Yanqiu Li
Keyword(s):  
Calculation Method ◽  
Near Field ◽  
Field Calculation

Fast extreme ultraviolet lithography mask near-field calculation method based on machine learning

2020 ◽  
Vol 59 (9) ◽  
pp. 2829
Author(s):  
Jiaxin Lin ◽  
Lisong Dong ◽  
Taian Fan ◽  
Xu Ma ◽  
Rui Chen ◽  
...  
Keyword(s):  
Machine Learning ◽  
Calculation Method ◽  
Extreme Ultraviolet ◽  
Near Field ◽  
Field Calculation ◽  
Extreme Ultraviolet Lithography ◽  
Ultraviolet Lithography

scholarly journals Installation Uncertainty of Field Level Calculation around a Base Station Antenna

2007 ◽  
Vol 3 (2) ◽  
pp. 115
Author(s):  
Antonio Šarolić ◽  
Borivoj Modlic
Keyword(s):  
Hazard Analysis ◽  
Near Field ◽  
Three Dimensional ◽  
Real Life ◽  
Base Station ◽  
Radiation Hazard ◽  
Specific Situation ◽  
Field Calculation ◽  
Single Antenna ◽  
Level Calculation

In the near field, the antenna pattern provided by the antenna manufacturer is generally not applicable, or shouldbe considered with caution, even for the single antenna in free space. In the real life, antenna is often surrounded by other conductive objects in the immediate vicinity. These objects tend to distort the antenna radiation pattern. Since the electromagnetic field calculation for the coverage or radiation hazard analysis depends on the three-dimensional antenna gain, this effect should be taken into account. This paper suggests the use of "installation uncertainty" that should be added to the field calculation. The amount of this quantity depends on the installation geometry and can be calculated numerically for a specific situation. This paper shows the results of numerical calculations for some typical antenna installation geometries.

scholarly journals Synthetic electric field calculation method of three-coil structure to resist the seawater flow vibration

AIP Advances ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 115007
Author(s):  
Kehan Zhang ◽  
Xinyi Zhang ◽  
Haibing Wen ◽  
Zhengchao Yan ◽  
Baowei Song
Keyword(s):  
Electric Field ◽  
Calculation Method ◽  
Field Calculation ◽  
Coil Structure ◽  
Electric Field Calculation

scholarly journals Substituting EMC emission measurement by field and cable scan method using measured transfer function

2013 ◽  
Vol 11 ◽  
pp. 183-188 ◽  
Author(s):  
D. Rinas ◽  
J. Jia ◽  
A. Zeichner ◽  
S. Frei
Keyword(s):  
Transfer Functions ◽  
Near Field ◽  
Good Alternative ◽  
Emission Measurement ◽  
Far Field ◽  
Field Calculation ◽  
Automotive Components ◽  
Anechoic Chambers ◽  
Cispr 25 ◽  
Space Requirements

Abstract. Today EMC emissions of automotive components are often measured in anechoic chambers by an antenna at fixed position according to CISPR 25 (ALSE-method). The antenna voltage often cannot sufficiently describe the behaviour of the measured electronic components and systems. Furthermore space requirements and costs are very high for the ALSE-method. Field- and cable-scan methods combined with near-field to far-field transformation techniques might be a good alternative. Residual reflections from the walls, the metallic floor, the measuring table, interaction of the antenna with the environment, and other factors affect the measurements. Thus, models which only regard the current distribution for near- and far field calculation cannot produce results equal to a chamber measurement. In this paper methods for computing transfer functions for the substitution of EMC antenna measurements with field- and cable scans in a specified calibration area are introduced. To consider influences of the environment, the environment is characterized in a first step and included with transfer functions in the calculation process for the equivalent ALSE-field.

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