Complex permittivity, complex permeability and microwave absorption properties of human blood

Abstract

Abstract This paper reports a method for measuring for the complex permittivity, permeability and microwave absorption properties of human blood of healthy human body. The proposed measurement method can be a useful technique for microwave absorption properties of human blood. The measurement using a waveguide in the microwave band. In order to measure the s-parameter of human blood, a sample should completely fill in the waveguide end and the samples holder using the vector network analyzer (VNA). The complex permittivity and permeability of human blood are resulted in the frequency range from 7 to 13 GHz. Their complex permeability and permittivity, microwave absorption properties values were calculated. The blood sample has the magnetic loss and magnetic energy dissipation. The reflection loss (RL) of blood sample has different absorption with its minimum value of -3.53 dB at 9.36 GHz.