Mobile radio aerial installation
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United States of America Patent
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-
Nov 24, 1998
Grant Date -
N/A
app pub date -
Apr 9, 1996
filing date -
Jul 9, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An antenna system for small basic transmitter-receiver stations of a communications system for mobile radio operators, with at least one transmission channel and one reception channel which operate on separate frequencies, with at least two antennas which are embodied for redundant reception (reception diversity). Each antenna is used as a transmission antenna for at least one channel. The transmitting operation is carried out without redundancy so that each antenna is fed by a different transmission channel, and the reception diversity is realized so that at least one antenna is set to receive a channel which is associated with the transmission channel of another antenna. The antenna system can be employed in mobile radio networks, in particular the D- net and the E-net. Advantages of the antenna system are low cost, low transmission loss, and high channel flexibility, and above all, the prevention of system interferences as a result of intermodulation products.
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