The scattering parameters and equivalent networks of the asymmetric coupled lines in inhomogeneous medium

2002 ◽  
Author(s):  
Anguo Wang ◽  
Yongshi Wu ◽  
Runtao Ding
Keyword(s):  
Inhomogeneous Medium ◽  
Scattering Parameters ◽  
Coupled Lines

Mixed-Port Hybrid Parameters for High-Speed Differential Lines

2018 ◽  
Vol 2018 (1) ◽  
pp. 000380-000383
Author(s):  
A. Ege Engin ◽  
Ivan Ndip ◽  
Klaus-Dieter Lang ◽  
Jerry Aguirre
Keyword(s):  
Transmission Lines ◽  
Mixed Mode ◽  
High Speed ◽  
Mode Conversion ◽  
Network Analyzer ◽  
Scattering Parameters ◽  
Coupled Lines ◽  
Tightly Coupled ◽  
Insight Into

Abstract High-speed transmission lines are commonly routed as differential lines to control sensitivity to noise on the reference planes at higher speeds. The preferred method of characterization of differential lines is in terms of mixed-mode scattering parameters, as they provide insight into the behavior of differential and common signals, as well as the mode conversion among them. These mixed-mode scattering parameters can be mathematically obtained from single-ended parameters, which can for example be measured with a 4-port vector network analyzer. There has been recent concerns about the so-obtained mixed-mode scattering parameters, especially for tightly-coupled lines, resulting in extended or modified definitions of mixed-mode scattering parameters. This can be a point of confusion in interpreting the behavior of differential lines. In this paper we introduce the mixed-port hybrid parameters, which do not suffer from any such ambiguous definitions, as they are based on intuitive differential and common-port excitations of the network. As such, mixed-port hybrid parameters can be used to analyze the mixed-mode performance of any arbitrary 4-port network, certainly including coupled or asymmetrical lines, without any ambiguity.

Asymmetric coupled lines in an inhomogeneous medium

1976 ◽  
Vol 12 (23) ◽  
pp. 629 ◽  
Author(s):  
R. Crampagne ◽  
L. Jinich ◽  
G. Khoo
Keyword(s):  
Inhomogeneous Medium ◽  
Coupled Lines

Experimental investigation and modelling of light scattering in a-Si:H solar cells deposited on glass/ZnO:Al substrates

2002 ◽  
Vol 715 ◽  
Author(s):  
J. Krc ◽  
M. Zeman ◽  
O. Kluth ◽  
F. Smole ◽  
M. Topic
Keyword(s):  
Surface Roughness ◽  
Experimental Investigation ◽  
Solar Cells ◽  
Angular Distribution ◽  
Light Scattering ◽  
Optical Model ◽  
Distribution Functions ◽  
Interface Roughness ◽  
Scattering Parameters ◽  
Good Agreement

AbstractThe descriptive scattering parameters, haze and angular distribution functions of textured ZnO:Al transparent conductive oxides with different surface roughness are measured. An approach to determine the scattering parameters of all internal interfaces in p-i-n a-Si:H solar cells deposited on the glass/ZnO:Al substrates is presented. Using the determined scattering parameters as the input parameters of the optical model, a good agreement between the measured and simulated quantum efficiencies of the p-i-n a-Si:H solar cells with different interface roughness is achieved.

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