PAGE CONTENTS
Objectives
The objectives are:
- To design, manufacture and test a thermal control device able to evacuate a high power generated by a compact active antenna Breadboard (4 kW) made of 97 Direct Radiating Arrays (DRA) dummies
- To demonstrate that the Mechanically Pumped Loop (MPL) complies with the specification of high power rejection and a very low gradient between all radiative elements.
- To show that a very dissipative Active Antenna can be thermally controlled with high accuracy.
Challenges
The main challenge of this development is to develop and test a two-phases thermal control device able to comply with the high power rejection need, the high power density at evaporator I/F coupled with the requirement of less than 2°C between all dissipative elements. A trade-off on thermal control concepts has shown that the Mechanically Pumped Loop device is the only one able to comply with active antenna requirements, both in terms of accommodation constraint (DRAs are very small and very close each other)
Plan
The project has been carried out with the following milestones:
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Concept Selection
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June 2009
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Design report
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October 2009
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Antenna Mock-up Specification
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February 2010
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Demonstrator Model Report
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July 2010
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AATDM Test Plan
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April 2012
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TRR
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May 2012
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AATDM Test Predictions
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May 2012
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AATDM Test Report
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March 2013
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TRB
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April 2013
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AATDM Final Report
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June 2013
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Current Status
Final review has been hold in June 2013