Title :
Thin film magnetic materials for RFIC passives
Author :
Zhuang, Y. ; Vroubel, M. ; Rejaei, B. ; Burghartz, J.N.
Author_Institution :
Fac. of Electr. Eng., Math., & Comput. Sci., Delft Univ. of Technol., Netherlands
Abstract :
Recent developments of magnetic thin films for monolithic integrated radio frequency (RF) passive components are reviewed. Challenges of applying magnetic films for RF devices, i.e. ferromagnetic resonance (FMR) and eddy current effects are discussed. Nano-granular magnetic materials are foreseen to be one of the most suitable candidate materials for RFIC for the low eddy current losses and the high FMR. Magnetic RF components, such as current controlled tunable inductors, shortened λ/4 transmission line, band-stop and band-pass filters, harmonic noise suppressors are discussed. A novel metal/ferromagnetic (FM) multi-layer structure is proposed to reduce eddy current loss. Prospects of integration of magnetostatic wave based components are discussed.
Keywords :
eddy current losses; ferromagnetic resonance; magnetic multilayers; magnetic thin films; monolithic integrated circuits; passive networks; radiofrequency integrated circuits; thin film circuits; RF circuits; RFIC passives; band-pass filter; band-stop filter; current controlled tunable inductors; eddy current losses; ferromagnetic resonance; harmonic noise suppressors; magnetic RF components; magnetic thin films; magnetostatic wave; metal/ferromagnetic multilayer structure; microwave devices; monolithic integrated radio frequency passive components; nanogranular magnetic materials; passive circuits; radiofrequency integrated circuit; thin film magnetic materials; transmission line; Eddy currents; Inductors; Magnetic films; Magnetic materials; Magnetic resonance; Magnetic separation; Magnetostatic waves; Nanostructured materials; Radio frequency; Radiofrequency integrated circuits;
Conference_Titel :
Bipolar/BiCMOS Circuits and Technology Meeting, 2005. Proceedings of the
Print_ISBN :
0-7803-9309-0
DOI :
10.1109/BIPOL.2005.1555194
