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IEC 60374: Waveguide and Waveguide Component Flanges — Standardized Mechanical Interfaces for Microwave Systems
Waveguide Flanges — How Mechanical Precision Determines Electrical Performance
IEC 60374:1971 specifies waveguide and waveguide component flange standardized dimensions. Flange flatness (typically ≤0.01 mm) and alignment pin precision directly determine the connection VSWR — every 0.1 mm increase in flange gap can increase the reflection coefficient by an order of magnitude at 10 GHz.
TNLab — At microwave frequencies, machining tolerances directly translate into electrical performance quality.
