Ferrite LTCC-based antennas for tunable SoP applications

Atif Shamim, Joey R. Bray, Nasrin Hojjat, Langis Roy

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

For the first time, ferrite low temperature co-fired ceramic (LTCC) tunable antennas are presented. These antennas are frequency tuned by a variable magnetostatic field produced in a winding that is completely embedded inside the ferrite LTCC substrate. Embedded windings have reduced the typically required magnetic bias field for antenna tuning by over 95%. The fact that large electromagnets are not required for tuning makes ferrite LTCC with embedded bias windings an ideal platform for advanced tunable system-on-package applications. Measurements of rectangular microstrip patch antennas on a ferrite LTCC substrate display a maximum tuning range of 610 MHz near 12 GHz. Two different bias windings and their effect on the antenna performance are discussed, as is the effect of antenna orientation with respect to the bias winding. The antenna radiation patterns are measured under biased and unbiased conditions, showing a stable co-polarized linear gain. © 2011-2012 IEEE.
Original languageEnglish (US)
Pages (from-to)999-1006
Number of pages8
JournalIEEE Transactions on Components, Packaging and Manufacturing Technology
Volume1
Issue number7
DOIs
StatePublished - Jul 2011

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

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