Teledyne GaN PowerMAX Phase Combined HPA Systems Indoor GaN SSPA Chassis

System Operation
The PowerMAX system maintains complete parallel redundancy down to the embedded control level. Therefore the loss of an entire HPA chassis will not interrupt remote communications with the system. Remote communications can be either RS-485 or Ethernet. The system will automatically
correct its gain level in the event of one or more HPA chassis failures.
The sophisticated system monitor and control allows the system to be locally or remotely operated as if it were a “single” chassis amplifier. The system control maintains a hierarchical management that allows the operator to interface to a single chassis of the multi-module array.
Another feature unique to Teledyne Paradise Datacom’s PowerMAX is the introduction of “true rms” output power measurement. Unlike other amplifier systems that utilize diode detection schemes, the PowerMAX reports the true rms output power of the system independent of the number of carriers
and modulation schemes.
Proprietary waveguide combining techniques are employed so that maximum power combining efficiency is optimized within the operating frequency band.

System Output Power and Configurations                                                                                Because the system power combining is purely passive and no switching is used, there is never an
interruption in RF output power. The PowerMAX system is typically used as a “self-redundant”
system. The output power is sized such that the loss of (1) RF module’s power will still allow the
system to maintain its minimum required output power. This type of system architecture is described
as n+1 redundant. The system can be configured with any number of modules but best overall
efficiency is obtained with the popular binary combinations of 4, 8, or 16 modules. It is very easy to
upgrade the PowerMAX system from 4 modules to 8 or 16 modules in the field. It is not necessary to
fully populate the system at the time of initial purchase. This provides the user a path to upgrade
output power capability as system requirements grow, thus keeping capital investment minimized.
For sizing redundant output power capability use the following guideline to determine the output
power of the system with the loss of (1) module.