17, March 2017

ESA Open Invitation To Tender AO8877
Open Date: 15/03/2017
Closing Date: 31/05/2017 13:00:00


Status: ISSUED
Reference Nr.: 15.1TT.38
Prog. Ref.: CC for Advanced Tech
Budget Ref.: E/0505-01C – CC for Advanced Tech
Tender Type: C
Price Range: 200-500 KEURO
Products: Satellites & Probes / RF / Microwave Communication (Platform and Payloads) / Antennas / Omnidirectional, Helix, Horn, Parabolic, Phased Arrays / Platform vs Payload
Techology Domains: Electromagnetic Technologies and Techniques / Antennas / Array Antennas and Standalone Radiators
Establishment: ESTEC
Directorate: Directorate Telecom & Integrated Applica
Department: Telecom Technologies,Product&Systems Dep
Division: Technologies and Product Division
Contract Officer: Melliger, Erich
Industrial Policy Measure: N/A – Not apply
Last Update Date: 15/03/2017
Update Reason: Tender issue

The objective is the design, manufacturing and testing of a BB of a miniaturized Ka-Band multi-layer BFN.Targeted Improvements: Monolithic beam forming network (BFN) presenting a high level of integration leading to size reduction and a 50% loss reduction.Description: Future telecommunication satellites will aim at achieving higher throughput and flexibility with respect to current satellite systems with consequential unit cost reduction (cost/Gb). This goal may be fulfilled by implementing a high number of user beams within the target coverage (e.g., >200 beams for European coverage and >30 for national coverage).For instance, in the case of a DRA antenna, in order to generate a given number of beams a high number of individual radiating elements are required. A very complex structure for splitting and routing the signal (BFN) is then needed between the repeaters and the individual radiating elements. Current BFN architectures are typically implemented by cascading several hybrid couplers heavily interconnected. The resulting structures are often bulky, with negative impacts on the payload mass and footprint as well as presenting considerable RF losses. Manufacturing technologies based on the local deposition of materials (additive manufacturing) have been successfully used in a number of applications such as microwave filters and RF harnesses. The application of these additive manufacturing technologies to BFNs can provide an increased integration level leading to size reduction and, potentially mass reduction while even improving RF performances. Additionally, due to the monolithic design approach, the AIT complexity is reduced. This activity consists in the design, manufacturing and test of miniaturised multilayer BFNs to be used in telecom multibeam missions based on additive manufacturing technologies.The work-logic of this activity may be summarised as follows:- Survey of available technologies for multilayer applications;- Preliminary design of a miniaturized multilayer BFN at Ka-band;- BB manufacturing and test.

If you wish to access the documents related to the Invitation to Tender, you have to log in to the ESA Portal.