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IJSTR >> Volume 9 - Issue 12, December 2020 Edition



International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616



2D-FEM Electromagnetic Characterization Of Quasi-TEM Coupled Elliptical Microstrip Line For Microwave Applications

[Full Text]

 

AUTHOR(S)

Yamina Bekri, Nasreddine Benahmed

 

KEYWORDS

2D-FEM electromagnetic characterization, Quasi-TEM coupled elliptical microstrip line, Elliptical microstrip directional coupler.

 

ABSTRACT

In this paper, we present analysis and study of quasi-transverse electromagnetic (quasi-TEM) coupled elliptical microstrip line (CEML), convenient for microwave and RF applications, by using finite element method (FEM) in two dimensions (2D) under FreeFEM environment. Firstly, we have rigorously determined the quasi-TEM electromagnetic parameters (EM) of the CEML line. For this type of structure, there are no analytical or numerical results found in the scientific literature. Accordingly, to validate our results, we have adapted our 2D-FEM program to study the general configuration of the coupled cylindrical microstrip line (CCML), and excellent agreement is found between our FEM results and those obtained with other techniques of the scientific literature. Later, to show the practicality and the usefulness of our 2D-FEM results, we have successfully used the found quasi-TEM parameters to design a new microwave directional 20-dB, 50-Ω elliptical microstrip coupler (EMC) operating at 2-GHz, with high-performances in terms of isolation (53 dB), directivity (34 dB) and reflection (46 dB), realized in Matlab environment, convenient for microwave measurement telecommunication systems and radar applications. Finally, to reinforce our work, the directional EMC coupler’s coupling response obtained under Matlab environment was validated by our results obtained under CST Microwave Studio Software.

 

REFERENCES

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