4. Possible Field Maxima (multiple reflections; excitation of resonances; dissipation of resonant energy; the empty, furnished, occupied chamber). 1.1. The Incident Microwave Radiation Field The SPS field incident upon a habitable structure is assumed to be a coherent plane wave with linear vertical polarization. The proposed frequency is in the UHF range at for the wavelength in free space. The direction of propagation is to the south (geostationary orbit; i.e., equator plane) with elevation angles for the continental United States. The proposed maximum power density SQ at the beam center is and it is the valid index of a plane-wave field apart from phase, polarization, and direction (Wacker and Bowman, 1971). The energy density (3) compares with 2 other known ones as follows (in units of mW/cm ): moon light UHF radio radiation in an urban area fringe area of SPS rectenna current U.S. standard for maximum continuous microwave exposure level (acceptable thermal burden for humans) SPS maximum power density (3) sunlight on a clear day (50% IR, 40% visible, 10% UV) localized microwave therapy microwave cooking breakdown of sea level atmosphere (ionization).
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