cryogenic amplifiers for the band 7 and band 9 cartridges n.
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Cryogenic Amplifiers for the Band 7 and Band 9 Cartridges. Juan Daniel Gallego. Work Package(s) Description.

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Presentation Transcript
work package s description
Work Package(s) Description
  • DEVELOPMENT: design and development of cryogenic amplifiers for the Band 7 and Band 9 Cartridges. including laboratory testing, manufacture of prototypes, and support of design reviews. Deliverables: (10) Band 7 and (2) Band 9 cryogenic amplifier prototype units
  • PRE-PRODUCTION: fabrication, assembly, testing, delivery and support of (32) Band 7 and (16) Band 9 cryogenic amplifier pre-production units (8 antennas).
  • BAND 7 IF: 4-8 GHz
  • BAND 9 IF: 4-12 GHz

MADRID

goals
Goals
  • Provide Cryogenic IF amplifiers to ESO for the two European Cartridges. Band 7 (IRAM) and Band 9 (NOVA)
  • Obtain State of the Art performance (InP HEMT devices):
    • Wide instantaneous band (4-8 and 4-12 GHz)
    • Low noise
    • Limited power dissipation
    • Low gain fluctuations
    • High reliability
  • Produce and Test the amplifiers within schedule

MADRID

problems
Problems
  • InP HEMTs procurement  ESO responsibility. Needed soon (June 2004!)
    • Founding for development in Europe (ETH, Franhofer) needed.
    • HRL?
    • TRW?
  • Amplifier Specifications under discussion
    • Highly dependant on InP HEMTs
  • Complexity of contracts similar to space projects
  • Development done with OAN-IGN founds (contract for development and pre-production in preparation)

MADRID

problems cost
Problems: COST
  • Initially (agreement): 1382 Keuro for both work packages.
  • Present Draft Contract: 340 Keuro (covers development and pre-production units for 8 antennas)
  • Estimated cost for production units: 4 Keuro/unit
  • Total cost (pre-production + production): 340+5664=1684 Keuro
  • Extra cost: 22%
  • Estimation assumes:
    • No spares
    • No changes in receiver configuration (number of amplifiers)

MADRID

present status
Present Status
  • Band 7 amplifiers (4-8 GHz):
    • Design done (TRW+ETH InP HEMTs)
    • 10 prototype units built and delivered to IRAM, NOVA
    • No payment received yet.
  • Band 9 amplifiers (4-12 GHz)
    • Design not finished yet
    • 2 prototype units to be delivered (May 2004?)

MADRID

present status1
Present Status
  • Lab equipment:
    • Dedicated Noise Figure Meter received
    • Dedicated Cryostat in construction (to be received in March 2004)
    • Dedicated Vector Network Analyzer to be bought in 2004
    • Wire bonding machine to be bought in 2004
  • Industrial production
    • TTI (Santander), (other companies already contacted)
    • Contract to be signed with IRAM for production of 56 amplifiers
    • Experience with this contract could be used for ALMA

MADRID

results expected by end 2004
Results expected by end 2004
  • Contract for Development and Pre-production signed with ESO
  • Specifications for band 7 and band 9 clarified
  • InP devices for contract (300) acquired by ESO and delivered to OAN
  • Band 9 amplifiers (4-12 GHz) design done, 2 prototypes delivered
  • Measurement Cryostat finished and tested
  • Dedicated Vector Network Analyzer acquired
  • Dedicated Wire Bonding Machine acquired

MADRID