Synthesis of <Emphasis Type="Italic">c</Emphasis>-Axis Barium Hexaferrite Puck for Communication Application |
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Authors: | W J Yeh Carla Blengeri Aditya Abburi David N McIlroy |
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Affiliation: | 1.Department of Physics,University of Idaho,Moscow,USA |
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Abstract: | Recent progress and needs by telecommunication industries require thick barium ferrite film with excellent magnetic properties
for microwave monolithic integrated circuit applications. In the present work we show a novel barium hexaferrite (BaFe12O19, or BaM) composite material, BaFe12O19 nanopowder mixture with epoxy, as a low-cost solution to fabricate thick BaM films. The mix is used to fabricate thick puck
of BaM within an alumina substrate. The resulting barium hexaferrite thick pucks have good magnetic properties with a magnetization
saturation 4πMs between 2000 and 2500 Gauss, a perpendicular coercivity of 3800 to 4000 Oe and a close to 0.9 squareness. In addition,
we have successfully fabricated and tested a self-biased microwave circulator by depositing and patterning copper contact
lines on the alumina substrate and the BaM thick puck. |
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