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13-03-2007
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EMBRACE Centre Board

Submitter: Sieds Damstra
Description: This is a prototype of the centre board of an EMBRACE tile. The latter is a 1 m^2 phased array with 64 antenna elements. One square meter is too large for most PCB-manufacturers, so the tile is split into four quadrant boards and a centerboard.
The center-board forms the heart of the EMBRACE tile, performing all major control functions. The control is done through an ethernet connection. The onboard FPGA translates the ethernet packets to the local communication protocols. The design is an extension of the LOFAR RSP-II ethernet interface.
Other important functions are beam forming of the quadrant boards, multiplexing of RF, DC and ethernet, temperature and voltage monitoring as well as onboard power supplies.
Copyright: J.Morawietz/Astron
 
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