Analytical Improvement of Common Port Return Loss Equiripple in Multiport Network Synthesis

This letter presents an analytical method for improving the common port return loss (CPRL) equiripple of multiplexer synthesis. The method proposes detuning the reflection zeros (RZs) of the initially imposed Chebyshev channels along imaginary axis. This adjustment introduces a minor deviation from...

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Detalles Bibliográficos
Autores: Faura Moreno, Mario|||0000-0003-3039-7793, Caballero, Carlos|||0000-0001-9194-9163, Verdú, Jordi|||0000-0002-2434-7012, Paco, Pedro de|||0000-0002-7628-7189
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:311915
Acceso en línea:https://ddd.uab.cat/record/311915
https://dx.doi.org/urn:doi:10.1109/LMWT.2025.3563972
Access Level:acceso abierto
Palabra clave:Characteristic polynomials
Equiripple
Feldtkeller's equation
Multiplexers
Remez algorithm
Synthesis
Descripción
Sumario:This letter presents an analytical method for improving the common port return loss (CPRL) equiripple of multiplexer synthesis. The method proposes detuning the reflection zeros (RZs) of the initially imposed Chebyshev channels along imaginary axis. This adjustment introduces a minor deviation from the ripple behavior in individual channels, effectively compensating for the equiripple discrepancy in the overall multiport function and yielding excellent execution times. Finally, a numerical example is provided to verify the method's enhancement over conventional multiplexer synthesis techniques, highlighting its practical effectiveness.