Obsolete filter designed for drop in replacement

A leading defence prime approached Filtronic to design a drop-in replacement for an obsolete filter due to component obsolescence. As this use case was generally used for emergency relief, deployment speed was critical. A drop-in replacement is inherently challenging since you are dealing with an existing package footprint, but Filtronic’s solution worked seamlessly within the customer’s existing package.


The solution

  • Improve RF performance whilst replacing obsolete product.
  • Accelerated development time.
  • Rigorous modelling proved technical approach worked.

The result

  • Reduced lead time for improved availability.
  • Meeting the environmental specification.

The challenge

  • Drop in replacements are inherently challenging as you already have a high level of existing architecture.
  • Challenging environmental conditions including temperature, altitude, shock and vibration.
  • Speed of deployment was very important, as this use case was generally used in emergency relief situations.

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