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Description & Specification
18.0 GHz to 26.5 GHz WR-42 K-Band Standard Gain Horn Antenna
20 dBi High-Gain Precision | Direct Waveguide Input | Model: WI-42-UBR-20
The WI-42-UBR-20 is a high-precision K-Band Standard Gain Horn Antenna professionally engineered by Fei Teng Wireless Technology Co., Ltd. (FT-RF) for rigorous millimeter-wave diagnostics and calibration setups within the 18.0 GHz to 26.5 GHz spectrum. Unlike common assemblies requiring separate transition blocks, this specialized model integrates a native, direct WR42 rectangular waveguide input with a standardized UG-419/U (UBR Square Cover) flange interface, completely minimizing electromechanical reflection loss and safeguarding peak signal fidelity. Providing an elevated, highly stable 20 dBi nominal gain profile coupled with focused beam envelopes (20° H-plane / 19° E-plane), this instrument serves as a critical calibration standard for EMI/EMC chamber configurations, anechoic antenna gain tracking matrices, automotive radar alignment testing, and high-energy satellite links. Precision-machined from premium structural aluminum alloy in Taiwan, this ultra-lightweight 50g architecture balances extreme mechanical rigidity with swift deployment versatility for automated scanning clusters and mobile range test benches.
Electrical & RF Performance
| Frequency Range Class | 18.0 GHz to 26.5 GHz (Continuous K-Band Optimization) |
| Waveguide Size Designation | EIA WR-42 (R220 Waveguide Geometry) |
| Nominal Gain (Typical) | 20 dBi |
| V.S.W.R Profile (Max) | 1.3 : 1 (Typical Low-Reflection Matching) |
| Maximum Power Handling | 500 Watts (CW Continuous Wave Thermal Threshold) |
| -3dB Beamwidth (H-Plane) | 20° (Focused Horizon Profiling) |
| -3dB Beamwidth (E-Plane) | 19° (Precision Vertical Focus Elevation) |
Mechanical & Material Specs
| Physical Dimensions (W x H x L) | 63 x 48 x 99 mm |
| Net Weight Profile | 50 g (Ultra-Lightweight Aerospace Aluminum Footprint) |
| Waveguide Interface Flange | Standardized UG-419/U Square Cover (UBR Mating Geometry) |
| Structural Body Material | Premium High-Conductivity Machined Aluminum Alloy |
| Manufacturing Origin | Taiwan Design & Made in Taiwan (FT-RF Professional Grade) |
20 dBi High Gain
Provides strong signal amplification with highly focused directionality (approx. 20° beam envelope), ideal for long-range boresight trace validations and low-noise calibration grids.
Direct Waveguide Input
Features a native WR42 interface without internal coax transitions, guaranteeing the lowest possible insertion loss and superior return loss for precise testing metrics.
K-Band Spectrum Stability
Covers 18.0-26.5 GHz continuously, meeting international deployment standards for advanced 77GHz automotive radar down-conversion testing, satellite links, and next-generation telecom networks.
EMI/EMC Reference Standard
Engineered with extremely predictable, flat gain tracking curves across the full band, establishing it as a highly reliable reference instrument for compliance scanning chambers.
50g Compact Build
Extremely light and space-saving design minimizes physical loading, allowing for instant integration onto tactical tripods, automated PTZ positioners, or inside space-constrained anechoic matrices.
Contact FT-RF Engineering Team
Contact our technical engineering division today to request official quote sheets, custom mounting brackets, tripod kits, certified individual calibration charts, or waterproof coating profiles.
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