Abstract
In this study, deoxyribonucleic acid (DNA) solution effect on the Purcell factor of an electric dipole antenna was analyzed. Any antenna tuned to a resonance can be described as a radiator, and the effect of the environment on its radiation can be defined as Purcell factor. It is possible to determine the Purcell factor in terms of the real part of the antenna input impedance. Therefore, the Purcell factor of an antenna in the presence of pure water and DNA solution was calculated through measuring the input impedance of a dipole antenna with resonance frequency of 9.6-11.6 GHz. The Purcell factor of the antenna was measured and analyzed in the frequency range 5-16 GHz for the samples placed at 5 mm to 20 mm from the antenna. The frequency bands where the maximum DNA sensitivity of Purcell factor occurs were determined.
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