BROADBAND BALANCING AMPLIFIER OF ULTRAHIGH FREQUENCY Russian patent published in 2006 - IPC H03F3/60 

FIELD: radio engineering, possible use for amplification of signals in radio-electronic equipment.

SUBSTANCE: broadband balancing amplifier of ultrahigh frequency consists of two directional branch devices and two amplification cascades, each of which consists of synchronization circuit, transistor and output synchronization circuit. Included in composition of circuits of amplification cascades are, by means of altering their wave resistances, quarter-wave-length transformers of directional branch devices. In case of equality of resistance of shoulders of directional branch devices, connected to amplification cascade, of active part of input resistance of transistor for input synchronization circuit and of active part of output resistance of transistor for output synchronization circuit, in input and output synchronization circuits of amplifiers, portions of micro-strip lines are excluded, serving for transformation of active part of input and output resistances of transistors.

EFFECT: expanded band of working frequencies, decreased number of elements of electrical circuit, simplified construction and decreased dimensions of amplifier.

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