ESA Intended Invitation To Tender

16.1TT.34


Title: DESIGN FOR MANUFACTURE APPROACH FOR LARGE FREQUENCY SELECTIVE SURFACES FOR TELECOM APPLICATIONS ( ARTES AT 5B.164)
AO Number: 1-8814
Program ref.: ARTES 5 Sub-El. 5.1
Tender Type: C
Tender Status: ISSUED
Price Range: > 500 KEURO
Budget Ref.: E/0505-01B - ARTES 5 Sub-El. 5.1
Proc. Prop.: DIPC
Special Prov.: BE+DK+FR+DE+IT+NL+ES+SE+CH+GB+IE+AT+NO+FI+PT+LU+CZ+RO+GR+CA
Establishment: ESTEC
Directorate: Directorate Telecom & Integrated Applica
Department: Telecom Technologies,Product&Systems Dep
Division: Technologies and Products Division
Contract Officer: Beardsell, Andrea
Products: Satellites & Probes / RF / Microwave Communication (Platform and Payloads) / Antennas - BB / Antenna Towers and/or Reflectors
Techology Domains: Electromagnetic Technologies and Techniques / Antennas / Array Antennas and Standalone Radiators
Industrial Policy Measure: C1 - Activities in open competition limited to the non-Larg...
Publication Date: 18-MAR-16

Objective: The main objective of this activity is to develop and test a frequency selective surface enabling antenna architectures capable of producing a transmit/receive multiple beam coverage with only one main reflector aperture. Targeted Improvements: Reducednumber of antenna apertures required for given telecommunications mission/Enable more complex and flexible antenna beam generation Description: There is a general trend towards the use of multibeam coverage to increase the satellite systems capacity. State-of-the-art multibeam payloads at Ka-band are based on single-feed-perbeam reflector antennas using three or four apertures to produce all the beams. Multibeam payloads are also being considered down to Ku and C-band. Satellite accommodation restrictions for secondary missions at Ka-band or primary missions at lower frequency bands bring the need for antenna configurations capable of producing all thebeams of a multibeam coverage, but with a reduced number of apertures. A possible approach is to use a multiple-feed-per-beam (MFB)system that generates the full coverage with two apertures, one operating in transmit and the other one in receive. Recent works onFrequency Selective Surfaces (FSS) have demonstrated the possibility to significantly reduce the ratio between transmitted and reflected bands. This activity shall investigate the combination of Multiple Feed per Beam (MFB) feed systems and an FSS to produce a multibeam coverage with only a single reflector antenna. This activity shall include a trade-off on the antenna geometry as well as onthe FSS technology with a design for manufacturing approach so as to provide RF performance in line with mission needs. Besides more conventional manufacturing techniques, additive manufacturing, pressing and inkjet printing shall also be considered in the trade-offs. Particular attention shall be given to the mechanical design and manufacturability of the FSS, as well as power handling and space environment constraints. The possibility to combine the degrees of freedom of both the FSS and the MFB feed systems shall be investigated as means to mitigate beam degradation with pointing angle. An EM of the proposed FSS shall be manufactured and tested. Performance at antenna level shall be derived from those measurements. The applicability of the selected design and technology to other frequency bands, such as C- and Ku-band, shall also be discussed. Procurement Policy: C(1) = Activity restricted to non-prime contractors (incl. SMEs). For additional information please go to EMITS news "Industrial Policy measures for non-primes, SMEs and RD entities in ESA programmes".