FIELD: radio engineering and communications.
SUBSTANCE: receiver (1), of at least one radio-frequency modulated signal coming from antenna (101), external in relation to the receiver, contains first stage (103) for low-noise amplification of radio-frequency modulated signal and stage (106) of demodulation of the said signal. Receiver has filter (104) SAW adapted to act as a band-pass filter around a predetermined frequency for a signal coming from the first stage, logarithmic amplifier (105) configured to amplify signal coming from the SAW filter, peak detector (402) of the output signal of the logarithmic amplifier, device (203) adapted for adjustment of amplification factor of first stage (103) for amplification of a radio-frequency modulated signal depending on the output signal (Vopeak) of the peak detector.
EFFECT: simplified circuit of the receiver and reduction of current consumption in comparison with known analogues.
8 cl, 9 dwg
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