WR-10 Medium Power Termination
The WR-10 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 75 - 110 GHz frequency range, serving as a critical building block in W-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. WR-10 encompasses the 75-110 GHz W-Band. It is heavily utilized for 77 GHz automotive radar systems (ADAS), requiring internal waveguide dimensions of precisely 0.100" x 0.050".
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.
W-Band Use Cases
Automotive Radar
77 GHz ADAS sensors
Passive Imaging
Security millimeter-wave
Defense Seeker
Missile terminal guidance
Materials Test
Dielectric characterization
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-10 the standard for automotive radar?+
The global standard for Advanced Driver Assistance Systems (ADAS) radar is 77 GHz to 81 GHz. WR-10 components (W-Band) are required for all test, measurement, and calibration systems used in the development and manufacturing of these automotive radar chips.
Can WR-10 handle high power?+
Because the aperture is only 0.100" x 0.050", the electric field density inside WR-10 is extreme even at moderate power levels. While it handles less total power than WR-28, a dry, nitrogen-purged WR-10 component can still safely pass over 100 Watts of CW power before experiencing dielectric breakdown.