AUTODYNE TRANSCEIVER FOR SHORT-RANGE RADIO LOCATION SYSTEMS Russian patent published in 2022 - IPC G01S13/34 

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering and can be used in short-range radio location systems (SRS), sensors, and meters intended to detect moving objects, determine the parameters of movement, and measure the distance thereto. The technical result of the invention is achieved adding in the proposed autodyne transceiver for SRS, containing a series-connected low-noise amplifier, a bandpass resonator configured for the natural frequency thereof to be changed, and a power amplifier, connected into the power circuit whereof is a current sensor in the form of a resistor for recording the autodyne signal, the following elements in order to solve the problem: a dividing and decoupling apparatus, and a radio frequency signal delay line; wherein the output of the power amplifier is connected with the first port of the dividing and decoupling apparatus, the second port whereof is the radio frequency input-output of the autodyne transceiver and is linked with the antenna, and the third port is linked with the input of the radio frequency signal delay line, the output whereof is connected to the input of the low-noise amplifier.

EFFECT: significant reduction in the autodyne deviation of the oscillation frequency of the oscillator causing the anharmonic distortions in the autodyne signals, the limitation of the dynamic range of the autodyne transceiver, and the phenomenon of periodic unsteadiness of noise characteristics; as well as increase in the potential thereof.

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