Design and Characterization of Bias Tee Used for S-parameter Characterization of Power Inductors
- Resource Type
- Conference
- Authors
- Major, Vedran; Bacmaga, Josip; Gillon, Renaud; Baric, Adrijan
- Source
- 2019 42nd International Convention on Information and Communication Technology, Electronics and Microelectronics (MIPRO) Information and Communication Technology, Electronics and Microelectronics (MIPRO), 2019 42nd International Convention on. :82-86 May, 2019
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Photonics and Electrooptics
Power, Energy and Industry Applications
Signal Processing and Analysis
Inductors
Transmission line measurements
Current measurement
Insertion loss
Impedance
Feeds
Inductance
frequency-domain characterization
inductor power loss
insertion loss
switching power converters
- Language
- ISSN
- 2623-8764
This paper presents the design and characterization of the bias tee for S-parameter characterization of surface-mount power inductors used in switching power converters. The bias tee is used to vary DC current through the measured power inductor. The equivalent circuit models of the inductive and capacitive elements are imported into the circuit simulator. The insertion loss, reflection loss and isolation are obtained from the simulations in the frequency range from 300 kHz to 100 MHz. The bias tee is designed on a dual layer printed circuit board and characterized using the vector network analyzer. The impedance characteristics of a 4.7-μH power inductor are extracted from measurements up to 100 MHz using the designed bias tee.