期刊
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS
卷 20, 期 6, 页码 773-779出版社
VSP BV
DOI: 10.1163/156939306776143424
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The effect of the electromagnetic fields on the human brain due to the usage of mobile phones is an active research area. These effects are a direct function of the electrical properties of the brain tissue which depends on the bound water content. This paper reports the microwave study of cerebrospinal fluid (CSF), the main constituent of which is water. Both normal and pathologically abnormal CSF samples are subjected to the microwave study and a study of the variation of the dielectric parameters of CSF with frequency is done for both the normal and pathologically different samples. In this communication, in vitro measurements using cavity perturbation technique is employed. The frequency range employed is between 2 to 3 GHz. It is seen that in the band of frequencies employed for the study, the normal and abnormal CSF samples exhibit distinctive behavior for the variation of dielectric constant and conductivity with frequency.
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