Title :
High frequency transformer modeling
Author :
Biernacki, Janzisz ; Czarkowski, Darizisz
Author_Institution :
Polytech. Univ. of Brooklyn, NY, USA
Abstract :
This paper presents a technique of indirect measurement of linear and nonlinear elements of a wideband transformer using the reflection coefficient technique with the scattering matrix (S-parameters). The S-parameter frequency domain measurement method of the wideband RF transformer and conversion into a discrete model is discussed. The leakage and the magnetizing inductances, the winding and magnetic losses, and the winding capacitances are calculated using the “parameter extraction” technique. Experimental results of a ferrite wideband transformer over the range 50 to 300 MHz, confirmed that the scattering matrix is a precise and efficient method to obtain a nonlinear transformer model
Keywords :
S-matrix theory; capacitance; equivalent circuits; frequency-domain analysis; high-frequency transformers; impedance matrix; inductance; magnetic leakage; nonlinear network analysis; swept-frequency reflectometry; two-port networks; 50 to 300 MHz; RF transformer; S-parameters; admittance matrix; discrete model; equivalent circuit; ferrite transformer; frequency domain measurement method; high frequency transformer modeling; impedance matrix; indirect measurement; leakage; linear elements; lumped elements; magnetic losses; magnetizing inductances; nonlinear elements; nonlinear transformer model; parameter extraction; power flow; reflection coefficient technique; two-port network; wideband transformer; winding capacitances; winding losses; Capacitance; Ferrites; Frequency domain analysis; Frequency measurement; Magnetic domains; Magnetic losses; Radio frequency; Reflection; Scattering parameters; Wideband;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921401
