FIELD: electricity.
SUBSTANCE: ferrite antenna comprises pumping oscillator, ferrite rod with receiving coils mounted on it, first capacitor connected parallel to the receiving coils and forming antenna circuit together with the coils, coupling transformer with primary and secondary windings and inductance coil which are independent from the receiving coils, semiconducting diode, transistor and switching circuit consisting of resistor and second capacitor. One of the antenna circuit lead-outs is an antenna terminal.
EFFECT: expanding bandwidth into higher frequency range, decreasing noise level and improving manufacturability.
2 dwg
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