CIRCUIT ARRANGEMENT FOR COMPENSATION OF THE DAMPING IN AN ANTENNA FEED CABLE FOR A MOBILE RADIO DEVICE

摘要

The invention relates to a circuit arrangement for compensation of the damping in an antenna feed cable between a mobile radio device and an external antenna. The aim of the invention is to embody such a circuit arrangement as to give a favourable arrangement thereof for the purpose of compensation of the signal damping which occurs in particular in respect to the circuit technology. The circuit arrangement is thus divided into two parts, an amplifier part (B) and a controller (A), whereby the amplifier part (B) is arranged in the antenna base (14) of the external antenna (2), with at least one transmitter and a receiver branch (3, 5). HF switches (8, 8', 9) are controlled by the controller (A), depending upon the detection of a transmission signal, such that HF signals transmitted by the mobile radio device (1) are routed through the transmitter branch (3) and incoming HF signals are routed through the receiver branch (5) of the amplifier part (B).