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Description & Specification
18.0 GHz to 26.5 GHz WR-42 K-Band Standard Gain Horn Antenna
Model: WI-42-UBR-15 | 15 dBi Precision Gain | 500W CW Power
The WI-42-UBR-15 (Original Model: WI-42-A1-15) is a high-precision K-Band Standard Gain Horn Antenna professionally engineered for the WR-42 waveguide standard. Operating across the 18.0 GHz to 26.5 GHz spectrum, this antenna delivers a consistent and precision-calibrated 15 dBi gain. Featuring a Direct Waveguide Input with a standardized UG-419/U (UBR) flange, it ensures ultra-low-loss power transfer for high-energy applications up to 500 Watts (CW). It is an essential instrument for EMI/EMC testing, satellite research, and precision antenna characterization in both laboratory and tactical field environments.
Technical Specifications
Electrical & RF Performance
| Frequency Range | 18.0 GHz to 26.5 GHz (K-Band) |
| Waveguide Standard | WR-42 / R220 / WG20 |
| Nominal Gain | 15 dBi |
| V.S.W.R (Max) | 1.3 : 1 |
| -3dB Beamwidth (H/E Plane) | 30° / 30° (Symmetric Design) |
| Maximum Power Handling | 500 Watts (CW) |
| Impedance | 50 Ohm |
Mechanical & Construction
| Dimensions (W x H x L) | 25.5 x 35.5 x 53 mm |
| Waveguide Flange | UG-419/U (UBR Style) |
| Body Material | High-Grade Machined Aluminum |
| Input Interface | Direct Waveguide (No Adapter) |
| Manufacturing Origin | Taiwan Design / Made in Taiwan (FT-RF) |
Key Tactical Features
K-Band Pattern Stability
Optimized for the 18.0-26.5 GHz spectrum, delivering the boresight accuracy and symmetric beamwidth required for repeatable laboratory measurements and professional antenna characterization.
Direct Waveguide Integration
Designed with a direct WR-42 interface for ultra-low-loss power transfer, eliminating transition losses associated with coaxial adapters in high-precision millimetric setups.
500W High-Power Handling
Robustly machined from premium aluminum to handle high 500W CW power loads while maintaining structural integrity during high-intensity Signal Defense testing missions.
Adaptive Deployment
Supports custom mounting designs, including PTZ control functions, waterproof builds, and specialized tripod adapters for mobile Signal Management and monitoring sub-systems.
Request a Professional Quote
Contact our engineering team to obtain individual radiation patterns, specialized waterproof builds, or customized tripod mounting solutions.
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