JFW Industries, Inc.

Hub Fan-out Transceiver Test Systems for Radio Testing

Hub Fan-out Transceiver Test Systems for Radio Testing

A hub fan-out transceiver test systems is constructed as a star matrix with all ports connected through a central hub. The star configuration limits the number of paths in the matrix to be equal to the number of ports. This type of construction allows for radio-to-radio communication testing. The attenuators can be remotely controlled to simulate static or dynamic environments.

With the hub configuration, there is a single programmable attenuators between the port and the hub. Two 4 port example block diagrams are listed below the table. The hub fan-out design is the most basic of JFW’s transceiver test systems. It is also the least costly since it uses a minimum number of internal RF components to construct the matrix.

By including RF switches into the construction, you may have multiple hubs. Each port will have an RF switch that is used to select between hubs. The isolation of the switches allows the hubs to act as separate networks.