This paper presents the results of research designed an integrated dual-frequency antennas-oscillators based on strip antennas as motion sensors. It is shown that the uses of dual-frequency mode allows reducing the absolute level of the amplitude of the information signal when a moving object is moved directly from the sensor antenna and reduce the impact of fluctuations of the generated oscillations amplitude on this signal simultaneously. In the first case it allows to minimize the impact of small moving objects, and the second − to increase the range of the sensor.