Parameter extraction of ferrite transformers using S-parameters

Damnjanović, Mirjana; Živanov, Ljiljana; Radosavljevic, Goran; Marić, Andrea; Menićanin, Aleksandar

doi:10.1109/epepemc.2010.5606650

Cited by 4 publications

(6 citation statements)

References 7 publications

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“…After that, de-embedded parameters are used for further determination of EMI suppressor parameters. This procedure is presented in our previous works [9].…”

Section: S-parameters Measurement and Extractionmentioning

confidence: 98%

“…Since characterization is done for the frequencies up to 1 GHz, this allows de-embedding of parasitic effects using only an open dummy feature. In this manner, influence of the dominant losses between measurement contacts and backside metallization plane can be easily eliminated in this frequency range [9].…”

Section: S-parameters Measurement and Extractionmentioning

confidence: 99%

“…Since the number of ferrite inductive components and their applications at higher frequency range (over 100 MHz up to 500 MHz) is growing rapidly [6]- [8], traditional characterization methods using impedance analyzer, cannot provide accurate enough results (over 100 MHz) and a different approach has to be used [9]. Because of that, we have proposed characterization method using vector network analyzer (VNA), which can provide more accurate measurement results not only in standard frequency range bellow 100 MHz, but also in high frequency range up to 1GHz.…”

mentioning

confidence: 99%

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Characterization of ferrite surface mount bead using S-parameters

Damnjanović

Živanov

Marić

et al. 2010

IEEE 8th International Symposium on Intelligent Systems and Informatics

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In this paper, characterization of ferrite surface mount bead based on S-parameters measurement, using vector network analyzer E5071B and specially developed PCB test fixture, are presented. The validation of characterization method was performed using commercially available ferrite component, the surface mount 4-way bead. It is shown that proposed approach is efficient in predicting and analyzing the ferrite bead performance, not only in standard frequency range bellow 100 MHz, but also in high frequency range up to 1GHz.

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“…After that, de-embedded parameters are used for further determination of EMI suppressor parameters. This procedure is presented in our previous works [9].…”

Section: S-parameters Measurement and Extractionmentioning

confidence: 98%

Section: S-parameters Measurement and Extractionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Characterization of ferrite surface mount bead using S-parameters

Damnjanović

Živanov

Marić

et al. 2010

IEEE 8th International Symposium on Intelligent Systems and Informatics

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“…Layout for de‐embedding of parasitic effect of the 2‐turns transformers is shown in Figure 7. The procedure of parameter extraction of the ferrite transformer is discussed with more details in Damnjanovic et al (2010a, b). Additionally, in that paper was shown that the de‐embedding of parasitic effects was necessary in the frequency range over 100 MHz, in order to provide accurate enough characterization results.…”

Section: Characterization Methods and Parameter Extraction Of The Ferrite Transformer Based On S‐parameter Measurement Using Vnamentioning

confidence: 99%

“…In our previous work (Damnjanovic et al , 2010a, b), we proposed a method for characterization of the ferrite transformers (component with four terminals) using VNA, based on extraction of measured S‐parameters. The main advantage of this method is that the S‐parameters can be easily and accurately measured and compared with other parameters in the high frequency range.…”

Section: Introductionmentioning

confidence: 99%

Characterization and modelling of miniature ferrite transformer for high frequency applications

Damnjanović

Živanov²,

Djuric³

et al. 2012

Microelectronics International

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Purpose -Significant achievements in ferrite material processing enable developments of many ferrite devices with a wide range of power levels and working frequencies, which make demands for new characterization and modelling methods for ferrite materials and components. The purpose of this paper is to introduce a modelling and measurement procedure, which can be used for the characterization of two-port ferrite components in high frequency range. Design/methodology/approach -This paper presents a commercially available ferrite component (transformer) modelling and determination of its electrical parameters using in-house developed software. The components are measured and characterized using a vector network analyzer E5071B and adaptation test fixture on PCB board. The parameters of electrical equivalent circuit of the ferrite transformer parameters are compared with values extracted out of measured scattering parameters. Findings -A good agreement between modelled and extracted electrical parameters of the ferrite transformer is found. The modelled inductance curves have the same dependence versus frequency as extracted ones. That confirms the model validity in the wide frequency range. Originality/value -In-house developed software based on proposed model provides inclusion of the ferrite material dispersive characteristics, which dominantly determines high-frequency behaviour of two-port ferrite components. Developed software enables fast and accurate calculation of the ferrite transformer electrical parameters and its redesign in order to achieve the best performance for required application.

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