The work presented in the paper focuses on accuracy of models for broad-band ferrite based coaxial transmission-line transformers. Soft-ferrites are largely used in VHF/UHF components allowing band enlargement on the low-edge side. Degradation of frequency performance on the high-edge side are produced both by ferrite losses, and by parasitic capacitance due to connection to the thermal and electrical ground in high power applications. Both a circuital model for low-power applications and a scalable e.m. model for high-power applications are presented and discussed. © 2010 EuMA.
Analysis and modelling of broad-band ferrite-based coaxial transmission-line transformers / A., Fanti; L., Piattella; Scotti, Giuseppe; Tommasino, Pasquale; Trifiletti, Alessandro. - (2010), pp. 353-356. (Intervento presentato al convegno 13th European Microwave Week 2010, EuMW2010: Connecting the World - 40th European Microwave Conference, EuMC 2010 tenutosi a Paris; France nel 28 September 2010 through 30 September 2010).
Analysis and modelling of broad-band ferrite-based coaxial transmission-line transformers
SCOTTI, Giuseppe;TOMMASINO, PASQUALE;TRIFILETTI, Alessandro
2010
Abstract
The work presented in the paper focuses on accuracy of models for broad-band ferrite based coaxial transmission-line transformers. Soft-ferrites are largely used in VHF/UHF components allowing band enlargement on the low-edge side. Degradation of frequency performance on the high-edge side are produced both by ferrite losses, and by parasitic capacitance due to connection to the thermal and electrical ground in high power applications. Both a circuital model for low-power applications and a scalable e.m. model for high-power applications are presented and discussed. © 2010 EuMA.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
