Title :
Modelling of three-port RF transformers
Author :
Kreuzgruber, P. ; Bonek, Ernst ; Scholtz, Arpad L. ; österreicher, J.
Author_Institution :
Inst. for Nachrichtentechnik & Hochfrequenztechnik, Univ. of Technol. Vienna, Austria
fDate :
6/1/1991 12:00:00 AM
Abstract :
A new model of a three-port transformer, with a ferrite core is presented. The transformer´s operating frequency lies in the VHF and lower UHF range. The presented model is compatible with most common computer programs for network analysis and synthesis. A measurement method is given for model parameter extraction, including a discussion of stray elements and loss mechanisms. Application of the transformer model to a feedback amplifier with two stages, each with a ferrite transformer in its feedback network, proves the validity of the model
Keywords :
high-frequency transformers; losses; modelling; transformer magnetic circuits; UHF; VHF; loss mechanisms; measurement method; model; model parameter extraction; radio frequency type; stray elements; three-port RF transformers; transformer model;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings G
