Microwave Power Density Measurements in the Presence of Biological Specimens of Size Comparable to the Free Space Wavelength of the Imposed Radiation

Power density measurements at X-band microwave frequencies were carried out in an anechoic chamber with and without the presence of biological specimens (animals and plant vegetation). Dramatic differences in the radiation patterns were observed. The difference is ascribed to the large disturbance introduced by the biological systems on the imposed electromagnetic fields.