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What is a conformal microstrip array?

  • A.Patches printed on a flexible substrate wrapped around a curved surface
  • B.Patches arranged so that their patterns conform to a specified shape
  • C.Patches whose dimensions all conform to a single standard design
  • D.Patches mounted flush with a flat metal surface on an aircraft skin

Answer: A

A conformal array bends the substrate around a cylinder or a fuselage, so the elements point in different directions and the excitation must compensate for both position and orientation. Flexible substrates make it practical. Shaped beam synthesis, dimensional standardisation and flush mounting on a flat surface are all different ideas. Curvature turns a straightforward array problem into a considerably harder one, which is why conformal arrays are used where the mechanical benefit justifies it.

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