Process and circuit arrangement for transmitting received signal

Details Process and circuit arrangement for transmitting received signal Process and circuit arrangement for transmitting received signal

1996-09-04

1998-11-17

Bacares, Rafael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359145, 359152, 455524, H04B 1000

Patent

active

058384740

ABSTRACT:
For transmitting received signals from an antenna (A) to a base station (BS) of a radio system, optical signals, which are transmitted to the base station (BS) via a light guide (L), are generated in an antenna unit (AE) connected to the antenna (A). An optical carrier is generated in the base station (BS) and is fed to the antenna unit (AE). There, the optical carrier is modulated, using an electro-optical modulator (EO), in a way corresponding to the received signals coming from the antenna (A) and is transmitted to the base station (BS) via a light guide (L). The present invention dispenses with the need for dedicated lasers in the antenna units (AE).

REFERENCES:
patent: 4916460 (1990-04-01), Powell
patent: 5159479 (1992-10-01), Takagi
patent: 5251053 (1993-10-01), Hidemann
patent: 5278690 (1994-01-01), Vella-Coleiro
patent: 5424864 (1995-06-01), Emura
patent: 5648961 (1997-07-01), Ebihara
patent: 5682256 (1997-10-01), Motley et al.

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