Method and device for inspecting at least one antenna branch, in

Details Method and device for inspecting at least one antenna branch, in Method and device for inspecting at least one antenna branch, in

1998-02-12

2000-09-12

Wong, Don

Communications: radio wave antennas

Antennas

Measuring signal energy

455126, 455101, 455 68, 324 98, 375347, H04B 104

Patent

active

061184098

ABSTRACT:
In order to inspect at least one antenna branch (A1, A2, . . . An), in particular in a vehicle, a power level to be radiated is initially fed into the antenna branch, after which a power level which is reflected in the antenna branch is sensed. Then, a relationship is formed between the fed-in power level and the reflected power level in order to obtain a quality signal indicating the quality of the antenna branch. This procedure can be carried out successively when there are a plurality of antenna branches, in order to select, as a function of the respective quality signal, that antenna branch at which the reflected power level is lowest. In this way, on the one hand, it is possible to check the matching of the antenna branches while, on the other hand, it is possible to ensure that, for example when specific antenna branches are damaged, it is always possible to find other antenna branches for satisfactory communication.

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