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Development of the IF2 Chain for the FPU of the HIFI Instrument. Alexander Megej April 15 th , 2003, Groningen. Introduction I. Second Stage of the IF-Amplification Chain. Introduction II. Two different amplifier types: Bands 1 5 (4  8 GHz) Bands 6H&L (4  8 GHz).

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development of the if2 chain for the fpu of the hifi instrument

Development of the IF2 Chain for the FPU of the HIFI Instrument

Alexander Megej

April 15th, 2003, Groningen

slide2

Introduction I

  • Second Stage of the IF-Amplification Chain
slide3

Introduction II

Two different amplifier types:

  • Bands 15 (4  8 GHz)
  • Bands 6H&L(4  8 GHz)
slide4

Activities Planned

  • LNA Design
    • 2 stage LNA for the altered frequency range of the Band 6 √
    • 3 stage LNA for the Bands 1-5 (4  8 GHz) √
  • Re-design of signal combiners
    • Soft substrate: RT6002 of Rogers (SRON). √
    • Alternative: TMM10i with the existing ETH design √
  • Development and testing of amplifiers to be completed by the end of 2002 √
  • SRON performs mechanical design of the IF-2 box in co-operation with Mecom, NL √
  • ITT-Package definition √
  • Design and technology transfer to an industrial partner starting in 2003 
slide5

LNA for Bands 15

Three-stage design using TRW InP HEMTs

slide8

LNA for Bands 15

Summary of Measured Results

The employment of the isolators at the IF-2 input can be avoided

slide9

LNA for Bands 6 H&L

Two-stage design using TRW InP HEMTs

slide11

LNA for Bands 6 H&L

Summary of Measured Results

Three-stage design required

slide12

LNA for Bands 6 H&L

Three-stage design required

slide13

Current Status I

ETH3DHI02

ETH3DLI01

slide15

Further Activities

  • Manufacturing of the Final Amplifier DMs
  • Issue of ITT
  • Assembling of the IF-2 DM
  • Transfer of the Design and Technology to an Industrial Partner
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