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Available Grades
A selection of magnetic ceramic substrates are available in three standard surface finish grades with custom specifications provided on request.

Grade 4: Fine Matte 4-8 µ"
Designed for thin film MIC applications that require superior surface perfection and flatness. Grade 4 substrates are also 100% inspected for all important parameters.

Grade 2: Lapped <16 µ"
Designed for both thick and thin film MIC applications where cost is a consideration yet controlled electrical and mechanical properties are required.

Grade 1: Surface Ground <32 µ"
Designed for thick film MIC application where cost is a consideration and surface perfection is not required. Other materials, surface finishes, and thicknesses may be requested and should be specified on the drawing. Consult the factory for price and availability.


  • Wide selection of 4πMs
  • Small size
  • Weight
  • Height


  • Frequency design 200 MHz/100 GHz
  • No connectors
  • No housing
  • Ease of integration with dielectric substrate

Documents and Applications Notes

File / DownloadFile Type

Microwave Substrates

Data Sheet