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Description & Specification
WR90 (8.2 to 12.4 GHz) SMA-Female Streamlined Waveguide Adapter
X-Band Precision | UBR Flange | Model: WC-090-UBR-S1-SF
The WC-090-UBR-S1-SF is a high-performance streamlined waveguide-to-coaxial adapter professionally engineered and manufactured by Fei Teng Wireless Technology Co., Ltd. (FT-RF) in Taiwan. Operating across the full WR90 (WG16 / R100) waveguide frequency band of 8.2 GHz to 12.4 GHz, it provides an ultra-low insertion loss of 0.15 dB and a maximum VSWR of 1.25. Featuring a compact streamlined mechanical profile measuring 41.4 x 41.4 x 22 mm with a precision UBR standard square flange and an SMA-Female (SUS303) coaxial interface, this adapter supports power levels up to 50W CW / 3000W Peak. It serves as a vital component in X-band radar systems, satellite communications, laboratory test benches, and microwave measurement setups.
Technical Specifications
| Waveguide Size | WR90 (WG16 / R100) |
| Frequency Range | 8.20 - 12.40 GHz |
| Waveguide Flange | UBR / UBR100 / FBP100 |
| Connector | SMA-Female (SUS303) |
| Insertion Loss | 0.15 dB |
| VSWR (Max) | 1.25 |
| Power Handling | 50W CW / 3000W Peak |
| Impedance | 50 Ω |
Mechanical & Physical Data
| Dimensions (L x W x H) | 41.4 x 41.4 x 22 mm (Height: 41.4 mm with flange) |
| Weight | 40 g (Estimated ~44.51 g assembly) |
| Body Material | Precision Aluminum Alloy |
| Internal Dimensions | 22.86 x 10.16 mm (0.9 x 0.4 in) |
| Flange Mounting | 4 x Ø4.17 mm Holes (32.51 x 30.99 mm Spacing) |
| Country of Origin | Taiwan |
Gain Calibration Plot
UPDATING IN PROGRESS
Laboratory measurement data pending official upload. Available upon request.
3dB Beamwidth Radiation Pattern
UPDATING IN PROGRESS
Laboratory measurement data pending official upload. Available upon request.
Key Design & Feature Highlights
X-Band High Precision
Full-band WR90 support from 8.2 GHz to 12.4 GHz with low 0.15 dB loss and typical low reflections.
Streamlined Compact Housing
Lightweight space-saving body measuring 41.4 x 41.4 mm simplifies tight multi-port microwave assemblies.
High Power Capacity
Handles up to 50W CW and 3000W peak RF input power with excellent thermal and electrical stability.
Taiwanese Precision
CNC machined from top-grade aluminum in Taiwan, ensuring repeatable flanging and robust coaxial contact.
Contact FT-RF Engineering Division
Contact our technical engineering division today to request official quotes or customized mounting solutions.
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