BROADBAND AMPLIFIER Russian patent published in 2007 - IPC H03F3/34 

FIELD: radio engineering; high-frequency amplifier stages for various analog devices.

SUBSTANCE: proposed amplifier has input parallel-balancing stage built around first and second input transistors 2 and 3 with integrated emitters, output transistor 4 of first reference-current supply whose collector is coupled with emitters of transistors 2, 3 and emitter is connected through first current-regulating two-terminal network to bus of first power supply 6, first and second auxiliary current amplifiers 7 and 8 whose outputs 9 and 10 are connected to output of broadband amplifier 11; input 12 of first auxiliary current amplifier 7 is connected to output 12 of input parallel-balancing stage 1 and base of output transistor 4 of first reference-current supply is connected to input 15 of second auxiliary current amplifier 8.

EFFECT: enhanced boundary-frequency high value and maximal rate of output voltage rise.

5 cl, 18 dwg