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Description & Specification
18.0 GHz to 26.5 GHz WR-42 K-Band Standard Gain Horn Antenna
10 dBi Precision Calibration | Direct Waveguide Input | Model: WI-42-UBR-10
The WI-42-UBR-10 is a high-precision, calibration-grade K-Band Standard Gain Horn Antenna professionally engineered by Fei Teng Wireless Technology Co., Ltd. (FT-RF) for the WR-42 standard waveguide setups. Operating within the high-frequency spectrum across the continuous 18.0 GHz to 26.5 GHz frequency range, this premium antenna delivers a highly stable and precision-calibrated nominal gain profile of 10 dBi combined with an exceptionally low maximum V.S.W.R threshold of 1.3 : 1. Featuring a Direct Waveguide Input equipped with a standardized UG-419/U (UBR Style) flange interface 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 54° radiation envelopes across both horizontal and vertical planes. It stands as the definitive choice for laboratory antenna characterization, specialized communication setups, industrial EMI/EMC compliance validation scanning, satellite research grids, and mission-critical high-power 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) | 10 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-Plane) | 54° (Symmetric Pattern Optimization) |
| -3dB Beamwidth (E-Plane) | 54° (Symmetric Pattern Optimization) |
| Nominal System Impedance | 50 Ohms |
Mechanical & Environmental Data
| Physical Dimensions (W x H x L) | 25.5 x 35.5 x 48 mm |
| Net Weight Profile | 15 g (Ultra-Lightweight Mechanical Footprint) |
| Waveguide Connection Flange | Standardized UG-419/U (UBR Style Flange Interface Layout) |
| Structural Body Material | High-Grade Precision Machined Aluminum |
| Manufacturing Origin | Taiwan Design & Made in Taiwan (FT-RF Professional Grade) |
Symmetric Beam Precision
Equipped with matched 54° E/H plane beamwidths, providing the ultra-stable radiation pattern necessary 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 setups.
500W High-Power Stability
Robustly machined from premium aluminum to handle high 500W CW power loads while maintaining structural integrity during high-intensity Signal Defense testing missions.
Millimeter-Wave Optimized
Fine-tuned for the 18-26.5 GHz spectrum, meeting rigorous international standards for professional RF measurement and next-generation satellite communication infrastructures.
Contact FT-RF Engineering Team
Contact our technical engineering division today to request official quote sheets, individual certified radiation patterns, specialized tripod mounting interfaces, or customized millimetric RF solutions.
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