Multiple-antenna system

摘要

An antenna system is disclosed herein which includes a frontend portion, a backend portion and a feed line which connects frontend portion and backend portion with each other. The frontend portion comprises at least two antennas, a combiner connected downstream of the antennas and upstream of the feed line and antenna connectors that electrically connect through antenna plugs, the antennas to the combiner. The backend portion includes an electrical power source connected to the feed line and a resistance evaluation circuit connected between the electrical power source and the feed line and that measures the resistance of the frontend portion through the feed line. At least one of the antenna connectors is in mechanical contact with a jumper having jumper plugs between which a high resistance connection and a low resistance connection is provided that depends on whether the corresponding antenna is connected to the combiner or not.

主权项

1. An antenna system comprising a frontend portion, a backend portion and a feed line which connects the frontend portion and backend portion with each other, in which:
the frontend portion comprises at least two antennas, a combiner connected downstream of the antennas and upstream of the feed line, and antenna connectors that electrically connect through antenna plugs the antennas to the combiner; the backend portion comprises an electrical power source connected to the feed line and a resistance evaluation circuit that is connected between the electrical power source and the feed line, the resistance evaluation circuit measures a resistance of the frontend portion through the feed line; at least one of the antenna connectors is in mechanical contact with a jumper including jumper plugs between which a higher resistance connection and a lower resistance connection is provided that depends on whether a corresponding antenna is connected to the combiner or not, the jumper plugs are connected to the feed line such that an internal resistance of the frontend portion depends on whether the corresponding antenna is connected to the combiner or not; and the resistance evaluation circuit is further configured to detect whether one of the antennas is not connected to a corresponding antenna amplifier by evaluating the resistance of the frontend portion.