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Tri-band (S/X/K) feed system design for future EO missions
Thu, 06/15/2023 - 03:00
Start Date:
2020
Programme:
GSTP
End Date:
2022
Programme Reference:
GT11-012GS
Country:
Luxembourg
Prime Contractor:
HITEC LUXEMBOURG SA
Status:
Closed
Objectives:
So far EO missions have been operated in S-Band (TTC) and in X-Band (payload data). In the future TTC services will migrate to X-Band and payload data will be transmitted in K-Band. The objective of this activity is to design a feed that will be able to operate in S/X/K-Band to cover running and upcoming EO missions.
Description:
The layout of the 14m X/K-Band antenna developed under a previous GSTP activity will be used as starting point to define the feed specifications. A trade-off among different feed configuration will be performed. After selection of the preferred solution the feed will be designed including diplexers/filters and tracking couplers. Mechanical drawings will be prepared and critical components will be manufactured and tested in order to de-risk the project.
In particular, the following activities will be performed:
- Feasibility analysis of tri-band feed horn and combining system
- Trade-off study on feed horn and optical layout
- System design performance budgets
- S/X/K tri-band feed horn design
- S/X/K-band optical design
- X-Band combining network and tracking coupler design
- Re-design of the reflector and sub-reflector and backup structures (if required)
- Precautions for PIM prevention
- Design of new waveguide runs
- Components selection and racking design
- Adaptation of local MC system
- Specification of the antenna with S/X/K-band feed, subsystem specification of feed-system and X-Band devices/components
- Updated layout of the antenna hub, waveguide runs, RF component placement etc.
- Manufacturing and testing of critical feed components identified during the design phase
Application Domain:
Earth Observation
Technology Domain:
12 - Ground Station Systems and Networks
Competence Domain:
8-Ground Systems and Mission Operations
Initial TRL:
TRL 3
Target TRL:
TRL 5
Achieved TRL:
TRL 6
Public Document:
Type:
Executive Summary