Microwave reflection loss of ferric oxide

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Conference Proceeding

Publication Date



The microwave reflection loss (RL) of ferric oxide is studied in the temperature range from 297 to approximately 1400 K at frequencies of 915 and 2450 MHz. It is shown that the maximum microwave absorption with RL of -38.46 and -35.97 dB can be obtained for ferric oxide having thicknesses of 0.03 and 0.01 m at 915 and 2450 MHz, respectively. The maximum absorption peak with RL below -10 dB is in a 250 K temperature range from 723 to 973 K at 915 MHz, which shifts to the range between 823 and 1073 K at 2450 MHz. This migration is in good agreement with the variation of the dielectric loss tangent of ferric oxide.

Publication Title

TMS Annual Meeting