WR-10 Waveguide Tee
The WR-10 Waveguide Tee is a precision-engineered waveguide component that splits a single millimeter-wave signal into two paths, or combines two signals together. It is specifically designed for the 75 - 110 GHz frequency range, serving as a critical building block in W-Band infrastructure.
Available in E-plane (series) or H-plane (shunt) configurations, the Tee creates a precision 3-port junction. Due to the physics of the junction, a perfect match at all three ports requires an internal matching post. 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
Dual Configuration
Available in E-plane (series) and H-plane (shunt) configurations to meet different signal phase and power division requirements.
Precision Port Alignment
CNC-machined port interfaces with tight tolerances ensure accurate waveguide alignment and repeatable flange mating on all three ports.
Low Junction Loss
Optimized tee geometry minimizes mismatch loss at the three-port intersection, maintaining signal integrity across the full operating bandwidth.
Gold-Plated Construction
OFHC copper body with gold plating provides excellent conductivity, corrosion resistance, and consistent long-term electrical performance.
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 Waveguide Tees
Frequently Asked Questions
What is a Magic Tee?+
A Magic Tee is a specialized 4-port component that combines an E-plane Tee and an H-plane Tee into a single unit. It acts as a 180-degree hybrid coupler, perfectly isolating the E and H ports from each other.
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.