Manufacturing aspects

Manufacturing aspects

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In this chapter, we will take a look at manufacturing aspects that are important for high-quality production of slotted waveguide array antennas. It is a wide subject so we will concentrate on critical parameters such as mechanical tolerances that relate to electrical performance. We will also discuss joining methods for metal materials, for example, dip brazing of aluminium. Applications at high frequencies (millimetre waves) in particular call for very high precision and special methods. An important area is the use of slotted carbon fibre reinforced plastic (CFRP) waveguides that offer light weight and thermal stability, typically required for large antenna systems for space applications. The technology is also used in some military ground and airborne radar systems. Some of the exciting developments in low-cost fabrication using plastic materials and metallisation techniques are discussed. This area is related to the microelectronic area, particularly for high frequencies and highly integrated antenna/microwave assemblies.

Chapter Contents:

  • 11.1 Tolerance theory
  • 11.2 Manufacturing methods
  • 11.2.1 Metallic materials
  • 11.2.2 Carbon fibre-reinforced plastic materials
  • 11.2.3 Microfabrication
  • References

Inspec keywords: thermal stability; slot antenna arrays; joining processes; metallisation; carbon fibre reinforced plastics

Other keywords: metallisation techniques; metal materials; thermal stability; CFRP waveguides; plastic materials; high-quality production; manufacturing aspects; slotted waveguide array antennas; airborne radar systems; microelectronic area; military ground; slotted carbon fibre reinforced plastic waveguides; space applications; antenna systems; low-cost fabrication; joining methods; electrical performance

Subjects: Joining processes and welding; Communications equipment manufacturing; Antenna arrays; General fabrication techniques

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