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Objectives
The objective of the activity is to design, manufacture and test a TT&C diplexer at S-Band for small sat applications with a reduced volume and mass.
S-band TT&C systems are commonly used in telecommunication satellites for the link between the spacecraft and ground stations during flight and orbit raising until the satellite reaches its nominal orbit. TT&C systems commonly comprise a diplexer which separates receive and transmit paths. S-band diplexers are typically the bulky component in TT&C modules. Reducing its size could lead to a significant reduction in volume of the whole unit. This is particularly important in small satellites where the size and mass are critical parameters.
Challenges
The key challenge is to develop a very compact, yet feasible and manufacturable technical solution which is affordable for cost sensitive small sat applications.
System Architecture
The diplexer consists of 2 band pass filters and a connecting manifold network (typically a star point connection).
Plan
This is an R&D activity with milestones at Baseline Design Review, Critical Design Review, Test Review Board 1 and 2.
Current Status
The project has just started.
