The WR137 copper waveguide is a 30-inch rigid transmission line designed for precision microwave signal control across the 5.85 GHz to 8.20 GHz band. Constructed from high-conductivity copper, it delivers minimal insertion loss and excellent VSWR performance for demanding RF applications. The waveguide meets EIA, IEC, and British Military standards, ensuring interoperability across defense, aerospace, and commercial microwave systems.
Technical Specifications
• Waveguide Size: WR137 (EIA); R70 (IEC); WG14 (British Military)
• Frequency Range: 5.85 GHz to 8.20 GHz
• Cutoff Frequency (TE10 Mode): 4.301 GHz
• Inner Dimensions: 1.372 in (34.8488 mm) × 0.622 in (15.7988 mm)
• Wall Thickness: 0.063 in (1.6 mm)
• Length: 30 in
• Material: Copper (high conductivity; optional silver or gold plating available)
• Insertion Loss: Typically ≤0.06 dB/ft
• VSWR: 1.05:1 to 1.25:1
• Common Flange Types: CPR137F, CPR137G, UG-344/U, UDR 70
– Key Features
• Rigid copper construction minimizes signal degradation and supports high-power transmission
• Low VSWR maintains impedance matching across the operating band
• Standard flanged connections ensure reliable, repeatable interconnection
• Optional surface plating further reduces conductor losses
• Predictable performance for precision measurement and signal routing
– Typical Applications
• Microwave communication systems
• Radar and weather radar systems
• Satellite communication networks
• Laboratory test setups and RF measurement
• High-energy physics research
• Defense and aerospace systems
– Compatibility & Integration
The WR137 waveguide accepts standard EIA, IEC, and British Military flanges, enabling direct integration with test equipment, amplifiers, antennas, and transmission components rated for the R70/WG14 form factor. Flange selection determines connection type and sealing method.
