Microwave Radiation Hazards around Large Microwave Antenna

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Abstract
The microwave radiation hazards associated with the use of large antennas become increasingly more dangerous to personnel as the transmitters go to ever higher powers. The near field area is of the greatest concern,, It has spill over from sub-reflector and reflections from nearby objects. Centimeter waves meeting in phase will reenforce each other and create hot spots of microwave energy. This has been measured in front of and around several 26-meter antennas. Hot spots have been found and are going to be the determining factor in delineating safe areas for personnel to work. Better techniques and instruments to measure these fields are needed for the evaluation of hazard areas.

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