Leaky and Surface Waves in Multi-Layered Laterally Shielded Microstrip Transmission Lines
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Research GroupGrupo de Electromagnetismo Aplicado a las Telecomunicaciones (GEAT)
Knowledge AreaTeoría de la Señal y las Comunicaciones
SponsorsUniversidad Politécnica de Cartagena
Bibliographic CitationGómez Tornero, J.L., Álvarez Melcón, A. Leaky and Surface Waves in Multi-Layered Laterally Shielded Microstrip Transmission Lines. En: Microwave and optical technology letters, 2003. pp. 88-93, vol.37, N.2.
In this paper the leakage effects in open laterally- shielded multilayered microstrip transmission lines are investigated. Po- tential solutions are often reported to be difficult to find, since they are located in the complex propagating factor plane. To overcome this problem, a novel iterative algorithm is implemented to relate the solu- tions in the real axis of closed transmission lines with their correspond- ing complex open structure modes. The problem of modeling the leaky behavior of the open top wall is introduced, and a mathematical and physical explanation of the solutions is proposed. The advantage of this new technique is that it allows us to easily track the leaky solutions to their final location in the complex plane. Results are presented, includ- ing the field and power patterns associated to leaky waves, showing that the derived technique is indeed effective for the study of the complex modes excited in this type of structures.
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