Electromagnetic fields close to radiant structures can be measured quickly using an infrared camera. Examples of induced fields by wire antennas over a detection screen at distances shorter than one wavelength are presented. The measured thermograms agree with simulations that take into account heat propagation on the detection screen
González, J., Aguasca, A., Romeu, J. Infrared thermograms applied to near-field testing. "Electronics Letters", Maig 1999, vol. 35, núm. 11, p. 885-886.