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Theory of Doubly-Shielded Coupled Lines for Directional Couplers of Various Directivity Types with Impedance Transforming

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posted on 31.05.2022, 13:45 by Aleksandr SychevAleksandr Sychev, Vladislav Bondar, Kezhik Dagba, Anton Stepanyuga, Nickolai Rudyi

Coupled lines with a double shielding in a homogeneous and inhomogeneous dielectric media are studied. They have specific properties that allow creation of impedance-transforming directional couplers with given directivity type. The proposed models and synthesis techniques takes into account both electric asymmetry and dielectric inhomogeneity. Numerical simulations prove the correctness of the general theory, and the possibility of creating co-, contra- and trans-directional couplers with impedance-transforming and phase-shifting properties. The results will be useful for finding new design solutions of advanced couplers and microwave circuits.

History

Email Address of Submitting Author

ans@main.tusur.ru

ORCID of Submitting Author

0000-0002-4079-4605

Submitting Author's Institution

Tomsk State University of Control Systems and Radioelectronics (TUSUR))

Submitting Author's Country

Russian Federation