A New Stripline Connection to JPARC Horn 1

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A New Stripline Connection to JPARC Horn 1

• Larry Bartoszek
• BARTOSZEK ENGINEERING
• 9/23/04

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Polarity of plates

• New design has this polarity
• RED-BLUE-RED-BLUE/BLUE-RED-BLUE-RED
• There is a mirror plane of symmetry for horns
• If there is no BLUE/BLUE mirror symmetry, the
  connection becomes almost impossible
• Plates have to get around each other

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Top view (viewing plane parallel to horn central
axis)
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View looking downstream along axis of horn
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Start with this water-tight horn
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Ears connect inner and outer conductors to
stripline plates. Ears may be assembled last
during horn module assembly.
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Detail view of connection between horn and ears
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Exploded View of connections
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Outer conductor corner connection exploded
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Outer conductor corner connection detail
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Advantages of this design

• Tolerances in manufacturing of parts may be
  looser than the first design
• Tolerance-caused differences can be taken up in
  the loose fit of bolt holes
• Design does not rely on the accuracy of rolled
  and bent parts
• No plates should need machining at assembly
• Current may be more cylindrically uniform

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Possible disadvantages

• The gap in between plates is not as constant as
  in the first design
• The overlap between blue and red plates is not as
  perfect as it was in the first design
• Do these differences cause a problem for the
  electrical characteristics of the stripline?

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What is missing?

• Need to develop a clamping mechanism to resist
  forces from stripline
• Need to design insulators as part of clamping
  mechanism

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Fastener Bill of Materials (so far)