Enhancing inductance of spiral copper inductor with BaFe12O19/poly (phenylene oxide) composite as an embedded magnetic core

Methyltriethoxysilane-treated BaFe12O19 particles were added into poly (phenylene oxide) (PPO) to obtain a composite system in the condition of benzoyl peroxide as an initiator. Thermal stability, structure, mechanical behavior and dielectric and magnetic properties were characterized to investigate the effects of BaFe12O19 particles on the performance of PPO-based composites. BaFe12O19/PPO composites were employed as embedded magnetic core to enhance the inductance of spiral copper inductors. Inductance value and quality (Q)-factor of the spiral copper inductor increased to 1.58 mu H and 40.2 at 30 MHz respectively when 50 wt% BaFe12O19 particles were added into PPO matrix for a composite system as an embedded magnetic core.