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Description & Specification
18.0 GHz to 26.5 GHz WR-42 K-Band Standard Gain Horn Antenna
15 dBi Precision Gain | Direct Waveguide Input | Model: WI-42-UBR-15
The WI-42-UBR-15 (Original Model: WI-42-A1-15) is a high-precision K-Band Standard Gain Horn Antenna professionally engineered by Fei Teng Wireless Technology Co., Ltd. (FT-RF) for the WR-42 waveguide standard. Operating across the continuous high-frequency spectrum of 18.0 GHz to 26.5 GHz, this premium antenna delivers a highly stable and precision-calibrated nominal gain profile of 15 dBi combined with an exceptionally low maximum V.S.W.R threshold of 1.3 : 1. Featuring a Direct Waveguide Input interface with a standardized UG-419/U (UBR Style) flange layout, it ensures optimal structural impedance coplanarity and ultra-low-loss power transfer, safely managing continuous wave power loads up to 500 Watts (CW). Precision CNC machined from high-grade structural aluminum alloy in Taiwan, the calculated internal horn geometry produces highly clean and symmetric 30° radiation envelopes across both horizontal and vertical planes. It stands as the definitive choice for laboratory antenna characterization, specialized 5G evaluation architectures, industrial EMI/EMC compliance validation scanning, satellite research grids, and mission-critical tactical testing arrays demanding uncompromised performance parameters.
Electrical & RF Performance
| Frequency Range Class | 18.0 GHz to 26.5 GHz (Continuous K-Band Spectral Optimization) |
| Waveguide Standard Size | EIA WR-42 / R220 / WG20 Layout Geometry |
| Nominal Gain (Typical) | 15 dBi |
| V.S.W.R Profile (Max) | ≤ 1.3 : 1 (Precision Minimal Reflection Performance) |
| Maximum Power Handling | 500 Watts (CW Continuous Wave Thermal Limit) |
| -3dB Beamwidth (H/E Plane) | 30° / 30° (Symmetric Design Optimization) |
| Nominal System Impedance | 50 Ohms |
Mechanical & Environmental Data
| Physical Dimensions (W x H x L) | 25.5 x 35.5 x 53 mm |
| Waveguide Connection Flange | Standardized UG-419/U (UBR Style Flange Interface Layout) |
| Input Interface Launcher | Direct Waveguide Input (No Coaxial Adapter Loss) |
| Structural Body Material | High-Grade Precision Machined Aluminum |
| Manufacturing Origin | Taiwan Design & Made in Taiwan (FT-RF Professional Grade) |
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.
Contact FT-RF Engineering Team
Contact our technical engineering division today to request official quote sheets, individual certified radiation patterns, specialized waterproof builds, or customized tripod mounting solutions.
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