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Description & Specification
18 GHz to 26.5 GHz K-Band E-plane Sectoral Horn Antenna
Model: HS-042-UBR-15E-KF | WR-42 (R220) | 15 dBi Gain
The HS-042-UBR-15E-KF is a high-precision E-plane Sectoral Waveguide Horn Antenna professionally engineered and manufactured by Fei Teng Wireless Technology Co., Ltd. (FT-RF) for millimeter-wave measurements and advanced tactical operations. Operating within the high-frequency K-Band spectrum across the continuous 18 GHz to 26.5 GHz range, this premium antenna is expertly flared in the E-plane to deliver an asymmetrical radiation profile featuring a narrow 16° E-plane focus combined with a wide 78° H-plane sectoral width layout. Integrating a direct waveguide core transition with a standardized UBR Style Flange mating face and a premium K-Female (2.92mm) coaxial interface port, it ensures flawless structural impedance coplanarity and low-loss power transfer. Safely managing continuous wave power loads up to 200 Watts (CW), this antenna is precision machined from high-grade structural aluminum alloy in Taiwan, yielding an ultra-lightweight 70g footprint profile paired with a maximum V.S.W.R threshold of 1.25 : 1. It serves as the definitive reference standard for laboratory EMI/EMC testing, automated range calibration measurements, direction finding tracks, and active high-frequency Signal Defense infrastructure deployments.
Electrical & RF Performance
| Frequency Range Class | 18 - 26.5 GHz (Continuous K-Band Spectral Optimization) |
| Waveguide Standard Size | EIA WR-42 / WG20 / R220 Geometry Layout |
| Nominal Gain Baseline | 15 dBi |
| V.S.W.R Profile (Max) | 1.25 : 1 (Precision Minimal Reflection Performance) |
| Maximum Power Handling | 200 Watts (CW Continuous Wave Limit) |
| -3dB Beamwidth (H-Plane / E-Plane) | 78° / 16° (Asymmetrical Sectoral Envelope) |
| Nominal System Impedance | 50 Ohm |
Mechanical & Construction Specs
| Physical Dimensions (W x H x L) | 48.78 x 22.4 x 149 mm |
| Antenna Net Weight Profile | 70 g (Precision Lightweight Design Form Factor) |
| Waveguide Mating Flange | Standardized UBR Style Flange configuration Face |
| Coaxial Connector Port | Precision K-Female Interface Port (2.92mm) |
| Structural Body Material | High-Grade Aluminum Alloy Architecture |
| Manufacturing Origin | Taiwan Design & Made in Taiwan (FT-RF Professional Grade) |
Precision Sectoral Coverage
Advanced E-plane flare design provides a narrow 16° horizontal focus while maintaining a broad 78° H-plane width, essential for localized Signal Security and chamber range calibration.
Superior Signal Integrity
Precision optimized WR-42 internal geometry ensures minimal return loss, flat gain response, and predictable radiation patterns for mission-critical millimeter-wave evaluation measurements.
Rigid K-Band Build
Manufactured from premium aerospace-grade aluminum to ensure long-term structural integrity and stability in field-deployed Signal Defense active configurations.
Consolidated Performance Data
Fully supported by a comprehensive traceable performance database to ensure accurate automated system calibration and highly predictable, repeatable measurement results.
Contact FT-RF Engineering Team
Contact our technical engineering division today to request official quote sheets, individual certified radiation patterns, specialized mechanical drawings, or custom K-Band sectoral flare configurations.
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