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Description & Specification
WR90 8.2 to 12.4GHz SMA-Female Endlaunch Waveguide to Coaxial Adapter
X-Band Precision Transition | Flange: UBR | Model: WC-090-UBR-E2-SF
The WC-090-UBR-E2-SF is a precision X-band endlaunch rectangular waveguide to coaxial adapter professionally engineered and manufactured by Fei Teng Wireless Technology Co., Ltd. (FT-RF) in Taiwan. Operating across the 8.2 GHz to 12.4 GHz frequency range, it provides an in-line transition between standard WR-90 (WG16 / R100) rectangular waveguides and 50-ohm SMA-Female coaxial connections. Featuring low insertion loss of only 0.15 dB and a maximum VSWR of 1.25:1, this adapter is CNC machined from durable aluminum alloy with an integrated square UBR flange (compatible with UBR100 / FBP100 patterns). Supporting power levels up to 50W CW / 3 kW Peak, it serves as an indispensable solution for microwave communications, radar system testing, and laboratory RF instrumentation.
Technical Specifications
| Frequency Range | 8.2 - 12.4 GHz |
| Waveguide Size | WR-90 (WG16 / R100) |
| Flange Type | UBR (UBR100 / FBP100 Compatible) |
| Connector Interface | SMA-Female (Endlaunch In-Line) |
| Impedance | 50 Ω |
| Insertion Loss | 0.15 dB |
| V.S.W.R (Max) | 1.25 : 1 |
| Continuous Power (CW) | 50 Watts |
| Peak Power Handling | 3 kW |
Mechanical & Physical Data
| Dimensions (L x W x H) | 50.50 x 41.40 x 41.40 mm |
| Component Weight | 90 g (Estimated ~88.18 g) |
| Body Material | Precision CNC Aluminum Alloy |
| Connector Material | Passivated Stainless Steel |
| Flange Hole Pattern | 4 x 4.17 mm Thru Holes (30.99 x 32.51 mm Spacing) |
| Country of Origin | Taiwan |
Insertion Loss Calibration Plot
Calibration in Progress
Laboratory measurement data pending official upload. Available upon request.
VSWR Performance Curve
Calibration in Progress
Laboratory measurement data pending official upload. Available upon request.
Return Loss Calibration Plot
Calibration in Progress
Laboratory measurement data pending official upload. Available upon request.
Key Design & Feature Highlights
In-Line Endlaunch Design
Axial coaxial configuration streamlines waveguide transitions for benchtop measurement setups.
Low Insertion Loss
Optimized internal impedance steps ensure minimal attenuation of 0.15 dB across the entire X-band.
Precision CNC Build
Manufactured from premium aluminum alloy with passivated stainless steel SMA feed for structural integrity.
Taiwanese Precision
Engineered and manufactured in Taiwan to guarantee tight tolerances and reproducible metrology results.
Contact FT-RF Engineering Division
Contact our technical engineering division today to request official quotes or customized mounting solutions.
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