RADIO-FREQUENCY POWER ADDER, FUNCTIONING AS HIGHER HARMONICS FILTER

摘要

FIELD: instrument making.;SUBSTANCE: invention relates to higher harmonics filter design, in particular, to radio-frequency power adder, operating as higher harmonics filter. Device includes, at least, one pair of coaxially arranged metal conductors in form of disc, at least, one of which has central axial bore for waveguide arrangement. Facing each other surfaces of metal conductors in form of disc are symmetrical relative to these conductors symmetry plane with creation of plurality of successive radially connected concentric cavities, having isosceles trapezoid shape with various bases in cross-section. Each trapezoid smaller base is located closer to central axis. Number of concentric cavities makes (2k+1), where k is number of filtered signal harmonics. All concentric cavities of said plurality of cavities have same radial length and different angle at trapezoid base, which depends on wave impedance of radial transmission line segment, generated by each of concentric cavities. Radio-frequency power adder comprises plurality of horn antennae, evenly arranged along periphery of metal conductors in form of disc. Each horn antenna outer side can be connected to radio frequency module, which is radio-frequency signal source.;EFFECT: technical result consists in increase of amplification efficiency.;10 cl, 9 dwg