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High-quality integrated inductors based on multilayered meta-conductors

Iramnaaz, I ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1109/LMWC.2012.2201710
  3. Publisher: 2012
  4. Abstract:
  5. We demonstrate high-quality integrated inductors built from a multilayer of alternating copper and ferromagnetic films. The multilayer acts as a meta-conductor whose effective permeability becomes nearly zero at its ferromagnetic anti-resonance frequency. This leads to a suppression of the skin effect and a significant increase in the quality factor of the device. Experiments show an up to 86% increase in quality factor compared to conventional copper-based spiral inductors at high frequencies
  6. Keywords:
  7. Ferromagnetic resonance (FMR) ; Magnetic thin film ; Quality factor ; Radio frequency (RF) ; Anti-resonance ; Copper-based ; Effective permeability ; Ferromagnetic films ; High frequency ; High quality ; Inductor ; Integrated inductors ; Multi-layered ; Quality factors ; Radio frequencies ; Spiral inductor ; Copper ; Critical currents ; Ferromagnetic materials ; Ferromagnetic resonance ; Magnetic thin films ; Multilayers ; Electric inductors
  8. Source: IEEE Microwave and Wireless Components Letters ; Volume 22, Issue 7 , 2012 , Pages 345-347 ; 15311309 (ISSN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6218130