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The objective of the project is to develop and qualify an assembly of multiple C to Q band converters intended for Very High Throughput Satellite communication payloads employing digital transparent processors for maximum traffic allocation flexibility. The equipment translates a C band output (3 GHz bandwidth) of the processor DACs to a Q band downlink frequency towards the gateways, with a compact and modular unit that must meet very challenging mass and cost targets.
The equipment will be conceived with the best possible compromise between conflicting requirements of compactness and modularity/flexibility, and with a wide operating bandwidth in order to be reused with minimal adaptations in multiple programs
Main challenges are:
This development is a key enabler of TAS’ offering of VHTS systems to address commercial and institutional demands for global high rate data connectivity at affordable prices, as a contribution to the solution of digital divide in Europe and worldwide.
Thanks to the wide operating bandwidth, it can be reused with minimal adaptations both in the programs guided by TAS, as part of an overall offer of satellite systems, and by other Primes, with TAS acting as supplier of subsystems and electronic equipment.
The product has the following features:
A. CPSFGU module
Each of the 2 modules is a double side module containing
B. RF UpConverter Modules
Each chain of the UpConverter modules translates a 3.8 to 6.8 GHz IF
bandwidth to the Q band downlink band within 37.5 to 42.5 GHz.
The unit is an assembly which includes 24 RF C/Q UpConverter chains.
The unit is composed of two sections:
This centralized section, which, at top level provides secondary voltages and LO signals to all the 24 RF up-converter chains is composed of two identical modules: main and redundant one
RF Up-converter section
This section is composed of three modules
Each of the three modules includes:
The block diagram and a drawing of the unit are reported in the below figures
The Project was carried out in two phases:
Production, assembly, integration and testing of the EQM model of the CQ CONVERTER was completed.
The Project is currently being closed with the following activities: