Cite this article:
Gupta,Tiwari, Srivastava and Tiwary (2002). Electrical properties of biological tissues· at microwave frequencies. Journal of Ravishankar University (Part-B: Science), 15(1), pp.23-29.
Journal of Ravishankar University Vol. 15-16 No. B(Science)
2002-2003 pp23-29
ISSN 0970-5910
Electrical properties of biological tissues· at microwave frequencies
N.K. Gupta,
G.K. Tiwari, S.K. Srivastava• and H.V. Tiwary
School of Studies in Electronics,
Pt. Ravishankar Shukla University. Raipur (C.G.)
• Govt. P.G. College. Ambikapur
{C.G.)
Ms : Received : 15/7/2002 Revised : 7/4/2003 Accepted : 23/6/2003
Abstract: The electrical properties of important organ tissues of chicken
are presented to understand the electromagneticpropagation characteristics and its biomedical application in biological
systems. Measurement of
dielectric constant, conductivity,
resistivity
and loss tangent have been carried out at frequency range 8.2-12.4 GHz on X-Band microwave
bench using infinite sample method,
which involves mounting
of the sample in a rectangular waveguide system excited in the TE10 mode. The result
shows that for all organs
the dielectric permittivity decreases
with
frequency
whereas conductivity increases with frequency. The dielectric constant
and conductivity decreases with the increase
of total solid content of the tissues. For higher water content tissues, loss tangent is found to be
higher compared to low water content
tissues, whereas the resistivity value increases with increasing the solid content
of tissues.
NOTE: Full version
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