GHz bandstop microstrip filter using patterned Ni78Fe22 ferromagnetic film

Y. Zhuang, B. Rejaei, E. Boellaard, M. Vroubel, J. N. Burghartz

Research output: Contribution to journalLetterpeer-review

Abstract

A series of microstrips with patterned Ni78Fe22 ferromagnetic cores have been investigated for RF applications. The devices have been integrated onto a silicon substrate by using a fully IC-compatible process. The Ni78Fe22 films were deposited by electroplating onto Si at room temperature and were structured into rectangular prisms with large aspect ratios, i.e., 10:1 and 40:1. Measurements have been performed using a network analyzer. Voltage attenuation of 19 dB/cm has been obtained at 3.9 GHz on a 2-mm-long strip line. The propagating wavelength is reduced by 60% compared to a control device without ferromagnetic core.
Original languageEnglish
Pages (from-to)473-475
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume12
Issue number12
DOIs
StatePublished - Dec 2002
Externally publishedYes

ASJC Scopus Subject Areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Keywords

  • Microstrip
  • On-chip
  • Permalloy
  • Radio frequency (RF)
  • Soft magnetic materials

Disciplines

  • Electrical and Computer Engineering

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