Waveguide Terminations (5W to 50W, WR90 to WR5)
Designed for rigorous microwave, millimeter-wave (mmWave), and high-frequency test environments, our high-power waveguide terminations (dummy loads) deliver reliable power dissipation from 5 Watts up to 50 Watts CW. Spanning rectangular waveguide sizes from standard WR-90 down to ultra-high-frequency WR-8, WR-6, and WR-5 bands (8.2 GHz to 220 GHz), these loads combine advanced thermal management with precise impedance matching.
Whether you are managing transmitter outputs in radar systems, powering satellite communication links, or conducting high-power bench testing, our power-rated waveguide loads prevent harmful reflections and maintain thermal equilibrium under continuous wave (CW) and pulsed power operation.
Power Ratings & Frequency Coverage
- 5W & 10W Options: Ideal for low-to-medium power signal generation, laboratory test benches, local oscillator testing, and smaller waveguide bands (WR-15 to WR-5).
- 15W & 20W Options: Suited for mid-tier transmitter monitoring, component characterization, and medium-power waveguide links across Ku, K, Ka, and Q bands.
- 50W High-Power Options: Engineered for demanding radar transmitters, high-power satellite ground stations, and larger waveguide bands (such as WR-90 and WR-42) requiring robust convection cooling.
Comprehensive Waveguide Size Spectrum
- WR-90 (8.2 – 12.4 GHz) / WR-62 (12.4 – 18.0 GHz): Available in 20W to 50W high-dissipation configurations.
- WR-42 (18.0 – 26.5 GHz) / WR-28 (26.5 – 40.0 GHz): Balanced thermal performance for K and Ka-band power handling.
- WR-22 (33.0 – 50.0 GHz) / WR-19 (50.0 – 75.0 GHz): Precision power loads for Q and V bands.
- WR-15 (50.0 – 75.0 GHz) / WR-12 (60.0 – 90.0 GHz) / WR-10 (75.0 – 110.0 GHz): Compact 5W to 10W thermal loads for E and W bands.
- WR-8 (90.0 – 140.0 GHz) / WR-6 (110.0 – 170.0 GHz) / WR-5 (140.0 – 220.0 GHz): Specialized sub-mmWave and terahertz low-wattage precision terminations.
Key Performance Advantages
- Precise Power Handling: Guaranteed dissipation ratings from 5W to 50W CW with stable thermal characteristics.
- Low VSWR Performance: Optimized internal lossy structures ensure minimal reflection (typically 1.05:1 to 1.15:1 max) across the operational bandwidth.
- Advanced Thermal Design: Optimized finned heatsinks and high-thermal-conductivity body materials (aluminum alloy or oxygen-free copper) prevent hot-spot formation.
- Robust Mechanical Integrity: CNC-machined precision with standard flange compatibility (UG-cover/choke, CPR, CMR) and protective corrosion-resistant finishes.
