| 摘要 |
<p>The device includes a first path provided with an amplifier (1) amplifying in a first frequency band, and a second path provided with an amplifier (2) amplifying in a direction opposite to that of the first amplifier and in a second frequency band outside of the first, a first filtering element (L1) with low-pass characteristic for transmitting the signals of the first path, and a second filtering element (C1) with high-pass characteristic for transmitting the signals of the second path. The two paths are joined by a third filtering element (CA) with high-pass characteristic, in series with a fourth filtering element (LA) with low-pass characteristic, whose common point is connected to earth by a matched load (ZCA), and an element inverting the polarity of the signals (TA) is inserted in series between two of the filtering elements. Application: Cable television distribution. <IMAGE></p> |
