Mode Coupling Coefficient Measurement of a Two-Mode Fiber

2014 ◽  
Author(s):  
H. Moriyama ◽  
H. Kubota ◽  
Y. Miyoshi ◽  
M. Ohashi
Keyword(s):  
Coupling Coefficient ◽  
Mode Coupling ◽  
Coefficient Measurement ◽  
Mode Coupling Coefficient

Mode coupling coefficient measurements in optical fibers

1978 ◽  
Vol 17 (24) ◽  
pp. 3979 ◽  
Author(s):  
Kenichi Kitayama ◽  
Masahiro Ikeda
Keyword(s):  
Optical Fibers ◽  
Coupling Coefficient ◽  
Mode Coupling ◽  
Mode Coupling Coefficient

Lead-free piezoelectric (K,Na)NbO3-based ceramic with planar-mode coupling coefficient comparable to that of conventional lead zirconate titanate

2017 ◽  
Vol 56 (6) ◽  
pp. 061501 ◽  
Author(s):  
Kazushige Ohbayashi ◽  
Takayuki Matsuoka ◽  
Kazuaki Kitamura ◽  
Hideto Yamada ◽  
Tomoko Hishida ◽  
...  
Keyword(s):  
Lead Zirconate Titanate ◽  
Coupling Coefficient ◽  
Mode Coupling ◽  
Lead Zirconate ◽  
Lead Free ◽  
Zirconate Titanate ◽  
Planar Mode ◽  
Mode Coupling Coefficient

scholarly journals Coupling Coefficient Measurement Method with Simple Procedures Using a Two-Port Network Analyzer for a Multi-Coil WPT System

Energies ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3950
Author(s):  
Seon-Jae Jeon ◽  
Dong-Wook Seo
Keyword(s):  
Coupling Coefficient ◽  
Measurement Method ◽  
Simple Procedure ◽  
Measurement Procedure ◽  
Network Analyzer ◽  
Wireless Power ◽  
S Parameter ◽  
Coefficient Measurement ◽  
Simple Measurement ◽  
Definition Of

In this paper, we propose a measurement method with a simple procedure based on the definition of the impedance parameter using a two-port network analyzer. The main advantage of the proposed measurement method is that there is no limit on the number of measuring coils, and the method has a simple measurement procedure. To verify the proposed method, we measured the coupling coefficient among three coils with respect to the distance between the two farthest coils at 6.78 and 13.56 MHz, which are frequencies most common for a wireless power transfer (WPT) system in high-frequency band. As a result, the proposed method showed good agreement with results of the conventional S-parameter measurement methods.

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