WAVEGUIDE POWER AMPLIFIER Russian patent published in 2010 - IPC H03F3/60 H01P1/00 

FIELD: radio engineering.

SUBSTANCE: wave guide is solid and not cut into pieces. Slots are made symmetrically on both sides inside wave guide along wide walls. In slots there installed parallel to narrow wall of wave guide are four assemblies. Each assembly includes metal base with grooves; at that, width of each longitudinal groove is equal to width of narrow wave guide wall. Amplifier board is fixed in transverse groove. Insulating substrates with waveguide-slot and microstrip lines are fixed above longitudinal grooves at the input and output of amplifier board; at that, two assemblies are installed in middle part of wave guide with reverse sides of amplifier boards to each other so that distance L between surfaces of their waveguide-slot lines is equal to 1/7 of width of wide wave guide wall. At input and output of amplifier boards, above microstrip lines there installed are screening plates, in each of which there is rectangular hole, and above amplifier boards in narrow wave guide walls there are rectangular holes closed with covers.

EFFECT: increasing radio tightness, increasing decoupling between output and input of waveguide power amplifier, as well as simplifying the design.

2 cl, 3 dwg