A low-cost high-power microwave receiver

The simple receiver described monitors the incident power density close to sensitive electronics and provides a record of the occurrence of potentially damaging RF exposure. This receiver measures the peak value of the incident field strength over a broad instantaneous bandwidth (1-6 GHz), identifies time periods during which threshold field strengths (2, 10, and 50 V/m) are exceeded, covers a +or-45 degrees field of view, and detects a single pulse whose duration exceeds 250 ns. This receiver purposely uses a simple design to permit low-cost fabrication, and a unique microstrip antenna was developed to fulfil design objectives.<
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