WR-19 Medium Power Termination
The WR-19 Medium Power Termination is a precision-engineered waveguide component that absorbs moderate RF energy, providing a perfect 50-ohm (normalized) match to prevent reflections. It is specifically designed for the 40 - 60 GHz frequency range, serving as a critical building block in U-Band infrastructure.
Medium-power terminations utilize a precision-tapered lossy dielectric wedge that gradually absorbs the RF wave over several wavelengths, preventing any sudden impedance steps. Covering the 40-60 GHz U-Band, WR-19 components operate near the 60 GHz atmospheric oxygen absorption spike. This makes WR-19 critical for secure, short-range military communications that cannot be intercepted from afar.
Key Features
Broadband Coverage
Full-band performance across the complete operating frequency range with consistent impedance matching.
Moderate Power Handling
Enhanced absorptive element with improved thermal capacity for sustained operation under moderate power conditions.
Production Ready
Built for reliability in automated production test lines and system integration environments.
Field Deployable
Compact enough for field applications while exceeding the power handling capability of low power loads.
U-Band Use Cases
V-Band WiGig
IEEE 802.11ad/ay testing
Covert Comms
Oxygen-absorption limits
Plasma Physics
High-frequency diagnostics
Radar Systems
Short-range tracking
More Medium Power Terminations
Frequently Asked Questions
How is VSWR minimized in a termination?+
The absorbing element is machined into a sharp spear or wedge shape. When the RF wave hits the tip, it sees almost empty space. As it travels deeper, the wedge gets thicker, gradually absorbing the power so no distinct "wall" ever bounces the signal back.
Why is WR-19 used for secure communications?+
WR-19 covers frequencies approaching 60 GHz. At 60 GHz, oxygen molecules in the Earth's atmosphere naturally resonate and absorb the RF energy, severely limiting the transmission range. Military systems exploit this by creating secure point-to-point links that naturally dissipate before enemies can intercept them.
What flange types are standard for WR-19?+
Because the aperture is only 0.188" x 0.094", WR-19 typically utilizes UG-383/U or precision anti-cocking flanges to ensure perfect alignment. Even a 0.005" misalignment will cause massive VSWR spikes at 60 GHz.