UNIT OF DOPPLER RADAR Russian patent published in 1997 - IPC

FIELD: radio engineering, in particular, room security. SUBSTANCE: device has capacitance communication element 4, resistor 5, filter element 6 with corresponding connections. Resistor 5 provides locked state of mixing diode 3 for most of microwave oscillations, which are generated by generator 1 and received by receiving antenna 2. This results in elimination of microwave power losses from antenna 2 through diode 3 to direct potential line 8. Elements 4 and 6 are used for isolation of microwave signal circuits and power supply circuits and unit output 7. EFFECT: increased functional capabilities. 5 cl, 3 dwg