| 摘要 |
FIELD: the invention refers to radio technique. ^ SUBSTANCE: it may be used particularly in frequency converters having dual dissipative mixers of radio receiving arrangements with phased suppression of frequencies of an image channel. The technical result is in provision practically of independence of the meaning of the input resistance of the wide-band amplifier of an intermediate frequency from the meaning of the loading resistance and from the influence of destabilizing factors, expansion of the band of operating frequencies, decreasing the number of such elements of the schemes as transformers and simplification of their construction. The wide-band amplifier has an inverting amplifier(8) and a transformer(&). In difference from the prototype it has the first, the second. The third and the fourth resistors(1-4) and the first and the second condensers(5-6). ^ EFFECT: improves parameters of the wide-band amplifier of an intermediate frequency. ^ 1 dwg |
