FIELD: radio receiving devices. SUBSTANCE: cooled microwave amplifier has pressurized housing, which is filled with dried inert gas, where transistor is placed and attached to surface of heat concentrator which lower side contacts cold edge of thermopile. In addition device has input and output matching circuits which are connected to input and output electrodes, transistor. Moisture absorber is introduced and positioned on cold edge of thermopile. EFFECT: increased functional capabilities. 2 dwg
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