ABSTRACT
Exposures to radio-frequency (RF, 3 kHz-300 GHz) electromagnetic radiation or microwaves (MWs, 300 MHz-300 GHz) vary in many parameters: intensity (incident ux power density [PD], specic absorption rate [SAR]), wavelength/frequency, near eld/far eld, polarization (linear, circular), continuous wave (CW) and pulsed elds (which include variables such as pulse repetition rate, pulse width or duty cycle, pulse shape, and pulse to average power), modulation (amplitude, frequency, phase, complex), static magnetic eld (SMF) and electromagnetic stray elds at the place of exposure, overall duration and intermittence of exposure (continuous, interrupted), and acute and chronic exposures. With increased absorption of energy, the so-called thermal effects of MWs are usually observed that deal with MW-induced heating. SAR is a main determinate for thermal MW effects. Several other physical parameters of exposure including carrier frequency,
5.1 Thermal and NT Biological Effects of MWs ......................................................................... 49 5.2 Most Important Physical Variables for the NT MW Effects ..................................................50
