DISTRIBUTED ANTENNA SYSTEM FOR MIMO SIGNALS

摘要

A distributed antenna system includes a multiple-input and multiple-output (MIMO) base station configured to output at least a first signal and a second signal. At least one master unit communicates with the MIMO base station. At least one remote unit communicates with the master unit. At least one antenna is coupled with the remote unit for receiving signals from the remote unit. A hybrid coupler is coupled between the remote unit and antenna and is configured to receive the first signal Ch1 and the second signal Ch2 from the remote unit on respective first and second ports and to provide an output signal on at least one output port. The output signal includes at least a portion of the first signal and at least a portion of the second signal. The antenna is coupled with the output port.

主权项

1. A system comprising:
a multiple-input and multiple-output (MIMO) signal source operable for providing MIMO signals including at least a first MIMO signal and at least a second MIMO signal; a plurality of remote units communicating with the MIMO signal source and configured to receive the first MIMO signal and second MIMO signal, each remote unit providing the MIMO signals at respective output ports; at least one radiating cable element for radiating signals into a space; a hybrid coupler coupled between the output ports of a remote unit and the cable radiating element and configured to receive the first MIMO signal and the second MIMO signal from the remote unit on respective input ports and to provide an output signal on at least one output port, the output signal including at least a portion of the first MIMO signal and at least a portion of the second MIMO signal; the radiating cable element coupled with the at least one output port.