FIELD: radio equipment and communications.
SUBSTANCE: invention relates to the field of radio equipment, and can be used in the wide-band radio transmitters power amplifiers harmonic filters. Short-wave transmitter harmonic filter contains switched using the input and output switches three-contact switches the N of the first and N of the second induction coils, which are connected in pairs in series and connected to each other by the induction coupling, wherein the inductively coupled induction coils magnetic fluxes are directed towards each other, and a made in the form of switched by means of control device set of capacitors variable capacitor.
EFFECT: simplification of the harmonic filter, its overall dimensions and weight reduction while flowing through the device elements current reduction.
4 cl, 4 dwg
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