HIGH-POWER RADIO TRANSMITTER HARMONICS FILTER Russian patent published in 2019 - IPC H03H7/09 

FIELD: electrical engineering.

SUBSTANCE: invention relates to harmonic filters of power amplifiers of wide-range radio transmitters. In filter containing N low-pass filters, switched to provide harmonics of high-power radio transmitter, frequency band of which is divided into N subbands, each low-pass filter comprises additional capacitor connected between input and output low-pass filter, as well as the first, the second and the third capacitors, the first outputs of which are connected to outputs of inductance coils, and the second leads are connected to the common bus through additional first, second and third inductance coils.

EFFECT: technical result consists in reduction of the level of harmonic components of the third and higher orders in the spectrum of the output signal of the high-power radio transmitter.

1 cl, 1 dwg