Diplexer for the separation of a signal and of a supply current

Details Diplexer for the separation of a signal and of a supply current Diplexer for the separation of a signal and of a supply current

1982-05-17

1984-08-21

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

179170J, 330 56, H03F 100

Patent

active

044674724

ABSTRACT:
A diplexer is disclosed for use in remotely fed intermediate regenerators or repeaters of broad-band transmission systems with coaxial cable sections. The diplexer has a high circulating attenuation at high frequencies. Since sections of the regenerator are at a remote feed potential and are connected to the inner conductor of the feed cable, a plurality of high-voltage stable feed-through capacitors as well as line inductors are required for decoupling the regenerator from noise voltages. In view of a lower expense and simpler structure, a diplexer is provided according to the invention which, at its carrier body, contains a tubular body with a material having a high dielectric constant and corresponding dielectric strength. The stripped feed cable is conducted through its free inside diameter, said tubular body being continuously metallized on the inside and by sections on the outside. It also contains ferrite rings at the outside at sections of the outer tubular body which are free of the metallization. The invention is particularly useful in PCM systems with transmission rates above 500 Mbit/s.

REFERENCES:
patent: 3530393 (1970-09-01), Thatch
patent: 4114107 (1978-09-01), Bauch et al.
patent: 4170761 (1979-10-01), Koppehele
patent: 4208633 (1980-06-01), Krause
"Power Separating Filters for Dependent Carrier-Frequency Repeaters", Frequenz (1974).

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