DOPPLER RADIOLOCATOR MODULE Russian patent published in 1997 - IPC

FIELD: radio engineering; instruments detecting movement of human beings and various objects used for burglar alarms of various premises. SUBSTANCE: module has, in addition, conducting substrate, first and second insulating layers. Transistor and second antenna function as emitter, first and second antennas, as directional coupler. So, radiolocator dispenses with waveguides, circulator, directional coupler, waveguide-to-strip adapters. EFFECT: increased operating range due to absence of waveguide-to-strip adapters as microwave signal power loss does not occur. 5 cl, 2 dwg