The permittivity of 7.7vol% and 15.8vol% ITO/wax composites were measured in the frequency of 2～18GHz,respectively.The results revealed that ITO had good dielectric property.Reflection loss of-10.5dB and-14dB were obtained at 4.51GHz and 6.27GHz for ITO/Epoxy resin samples of 20vol% and 10vol%,respectively.The theoretical values of 15.8vol% ITO / wax composite exhibited good microwave absorption property(reflection loss -10dB) in the frequency rang of 4.56~11GHz,with thickness of 3mm.The dielectric loss mechanism of ITO was analyzed.
Key words
In(Sn)2O3 /
permittivity /
absorption /
reflection
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