A security surveillance microwave sensor having a reduced false report rate using biological signal detection, the security surveillance microwave sensor comprising:
- a first Doppler radar including a transmitter to generate an oscillation frequency of a predetermined period using a first voltage, to amplify the generated oscillation frequency to a predetermined magnitude, and to transmit the amplified oscillation frequency through a first transmission antenna;
- and
- a second Doppler radar including a transceiver including:
- a radar transceiver to generate a second oscillation frequency of a second predetermined period using a second voltage, to amplify the second generated oscillation frequency to a second predetermined magnitude, and to transmit and receive signals transmitted from the first transmission antenna and a second transmission antenna through a first reception antenna,
- a security signal processor to process a security surveillance intermediate frequency (IF) signal converted from the amplified oscillation frequency transmitted from the first transmission antenna and received through the first reception antenna, to convert the security surveillance IF signal to a first DC voltage level of a predetermined magnitude, and to output the first DC voltage level,
- a human body detection signal processor to process a Doppler IF signal generated by a wave signal transmitted from the second transmission antenna, reflected by a monitoring target object approaching a predetermined monitoring area, and received through the first reception antenna of the radar transceiver, to convert the Doppler IF signal to a second DC voltage level of a predetermined magnitude, and to output the second DC voltage level, and
- a comparator to compare the first DC voltage level input from the security signal processor with the second DC voltage level input from the human body detection signal processor, and to output a result value, wherein:
- the first reception antenna receives the amplified oscillation frequency transmitted from the first transmission antenna by way of a monitoring distance d within the predetermined monitoring area and the signal transmitted from the second transmission antenna and reflected by the monitoring target object within the predetermined monitoring area, and
- the security signal processor and the human body detection signal processor detect the monitoring target object that approaches or maintains a fine movement or a standstill state, and determine malfunction of the security surveillance microwave sensor.