WR90 (8.2GHz to 12.4GHz) N-Female Endlaunch Rectangular Waveguide to Coaxial Adapter Flange: UBR (Type: E2) (WC-090-UBR-E2-NF)

Model No: WC-090-UBR-E2-NF

FT-RF          
Frequency Range: 8.2 - 12.4 GHz
Component Type: Endlaunch Waveguide to Coax Adapter
Waveguide Size: WR-90 (UBR / N-Female)
V.S.W.R (Max): 1.25 : 1
Power Handling: 150W CW / 3 kW Peak
Stock: 0
2026/10/12
Quantity:
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WR90 8.2 to 12.4GHz N-Female Endlaunch Waveguide to Coaxial Adapter

X-Band In-Line High-Power Transition | Flange: UBR Type: E2 | Model: WC-090-UBR-E2-NF
The WC-090-UBR-E2-NF is a high-power 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 a high-efficiency in-line transition between standard WR-90 (WG16 / R100) rectangular waveguides and 50-ohm N-Female coaxial systems. Built with tight mechanical tolerances, it delivers a low insertion loss of only 0.15 dB and a maximum VSWR of 1.25:1. Featuring a robust aluminum alloy body with an integrated square UBR flange (compatible with UBR100 / FBP100 patterns) and a durable passivated stainless steel N-Female connector, it handles power levels up to 150W CW / 3 kW Peak, providing an essential 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 N-Female (Endlaunch In-Line)
Impedance 50 Ω
Insertion Loss 0.15 dB
V.S.W.R (Max) 1.25 : 1
Continuous Power (CW) 150 Watts
Peak Power Handling 3 kW
Mechanical & Physical Data
Dimensions (L x W x H) 59.40 x 41.40 x 41.40 mm
Component Weight 120 g (Estimated ~106.32 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.

High Power Rating

Handles robust power levels up to 150W continuous CW and 3 kW peak power across the full X-band.

Durable N-Female Interface

Passivated stainless steel N-Female interface provides exceptional mechanical strength and mating durability.

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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