WR-19 Waveguide Tee
The WR-19 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 40 - 60 GHz frequency range, serving as a critical building block in U-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. 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
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.
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 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-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.