Flann

Flann

Flann Microwave Ltd is a UK-based manufacturer with a long heritage in precision waveguide components for RF and microwave applications. Established in the 1960s, Flann specializes in the design and production of passive microwave components including waveguide-to-coax adapters, waveguide straights, precision rotary vane attenuators, directional couplers, and related hardware spanning a broad range of waveguide bands from UHF through millimeter wave frequencies.

Flann's components are manufactured to high mechanical and electrical precision and are supplied for use in test and measurement systems, antenna test ranges, satellite ground stations, and laboratory research setups. Their waveguide hardware is compatible with standard EIA, IEC, and WR-series flanges, ensuring interoperability with instrumentation from major RF and microwave test equipment manufacturers.

Key Product Lines

• Waveguide-to-Coax Adapters — precision transitions between waveguide and coaxial transmission lines for a wide range of frequency bands
• Rotary Vane Attenuators — precision continuously variable attenuators for RF power level control in calibrated test setups
• Waveguide Straights and Sections — passive waveguide runs for routing signals in test fixtures, antenna systems, and instrumentation

Industries Served

Flann Microwave components are used extensively in aerospace and defense, satellite communications, radar development, academic and government research laboratories, and commercial RF and microwave test environments. Their millimeter wave products are particularly relevant for 5G development, automotive radar, and advanced materials characterization applications.