Interferential spatial scale and its role in the near-field diagnostics of biological tissues and media

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Authors: Zapasnoy A. S., Belichenko V. P., Mironchev A. S.

Annotation: Sensing volume of two open-ended coaxial probes for characterization of biological tissues and media at microwave frequencies is studied. This volume is formed in the overlapping evanescent fields of the probes. It is shown that there are quasistatic, wave and “interferential” spatial scales. The role of the latter is studied on full-wave modeling basis.

Keywords: near-field diagnostics, interferential spatial scale, biological tissue and media, interference energy flux, evanescent field, microwave microscope