Pocket size microwave radiation hazard detector

Claim 1

A continuous wave microwave radiation detector comprising: input means including an antenna for detecting continuous wave microwave radiation and for providing a DC voltage whose level is a direct function of the detected radiation level; a plurality of comparators each being directly connected to said input means to compare said DC voltage with a different DC reference voltage, each DC reference voltage representing a different level of detected radiation, each comparator providing an output signal of a selected level when the level of the DC voltage from said input means is not less than the DC reference voltage level supplied thereto; and output means responsive to the output signals of said comparators for providing a first output when the DC voltage from said input means is less than the lowest DC Reference voltage, thereby indicating that said detected radiation level is in a first range, for providing a second output when the DC voltage from said input means is not less than the lowest DC reference voltage but less than a second DC reference voltage which is greater than the lowest DC reference voltage, thereby indicating that the level of the detected radiation is in a second range higher than said first range, and for providing a third output when the DC voltage from said input means is not less than the second DC reference voltage, thereby indicating that the level of the detected radiation is in a third range said output means further including inhibitor means responsive to said second output for inhibiting said first output, and responsive to said third output for inhibiting both said first and second outputs, higher than said second range.