A fast circuit model for interaction of open-ended rectangular waveguide probes with surface long cracks in metals

2011 ◽  
Author(s):  
I. Ahanian ◽  
S. H. H. Sadeghi ◽  
R. Moini
Keyword(s):  
Rectangular Waveguide ◽  
Circuit Model ◽  
Fast Circuit

scholarly journals Modal Analysis of Directional Coupler and Its Equivalent Circuit

2019 ◽  
Vol 8 (4) ◽  
pp. 103-107
Author(s):  
M. Mohammadi
Keyword(s):  
Modal Analysis ◽  
Equivalent Circuit ◽  
Rectangular Waveguide ◽  
Directional Coupler ◽  
Equivalent Circuit Model ◽  
Circuit Model ◽  
Mode Matching ◽  
Ansoft Hfss ◽  
X Band ◽  
Matching Technique

A modal analysis for the directional coupler is presented in this paper. The analysis is based on the mode-matching technique. The theory is verified by Ansoft HFSS software at a directional coupler with standard X-band (WR 90) rectangular waveguide ports. Element values of equivalent circuit model are computed by using the S-parameters obtained from the presented method in this paper. In addition this paper has corrected two formulations used in two previous works which have been published.

A Circuit Model for Lightning Surge of Wind Turbine Tower with an Internal Conductor

2015 ◽  
Vol 135 (3) ◽  
pp. 200-206 ◽  
Author(s):  
Yoki Ikeda ◽  
Naoto Nagaoka ◽  
Yoshihiro Baba
Keyword(s):  
Wind Turbine ◽  
Circuit Model ◽  
Wind Turbine Tower
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