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Description & Specification
WR-137 Standard Gain Horn Antenna
Precision C-Band Reference Radiator | Standard UDR Flange Layout | 5.85 GHz – 8.2 GHz
The WI-137-UDR-20 is a laboratory-grade microwave Standard Gain Horn Antenna professionally engineered by Fei Teng Wireless Technology Co., Ltd. (FT-RF) for high-fidelity directional transmission, radar benchmarking, and anechoic calibration routines across the 5.85 GHz to 8.2 GHz C-Band spectrum. Optimized to enforce exceptional boresight path stability, this premium horn antenna delivers an elevated nominal directive gain profile of 20 dBi combined with an exceptionally low maximum V.S.W.R threshold of 1.3 : 1. Precision CNC machined from high-grade structural aluminum alloy in Taiwan, the advanced horn flare geometry establishes a highly uniform radiation footprint, providing symmetrical -3dB beamwidths of 54° in both the H-plane and E-plane matrices for excellent field coverage. Equipped with a standardized rectangular square UDR Style Flange layout, this 720 g component ensures flawless electromechanical coupling, connects directly into standard WR137 systems without bulky transition interfaces, and safely manages continuous wave power loads up to 800 Watts (CW). This optimized layout avoids destructive field distortion modes, making it the definitive choice for intense EMI/EMC testing, emissions monitoring, antenna calibration ranges, and mission-critical Signal Defense infrastructure arrays.
Electrical & RF Performance
| Frequency Range | 5.85 GHz to 8.2 GHz (C-Band Continuous Support) |
| Standard Nominal Gain | 20 dBi |
| V.S.W.R Profile (Max) | ≤ 1.3 : 1 |
| Maximum Power Handling | 800 Watts (CW Continuous Wave) |
| -3dB Beamwidth (H-Plane) | 54° |
| -3dB Beamwidth (E-Plane) | 54° (Symmetrical Radiation Footprint) |
| Signal Polarization Class | Linear (Vertical or Horizontal Orientation) |
| Nominal System Impedance | 50 Ohms (Coaxial Launch Mating Dependent) |
Mechanical & Physical Specs
| Waveguide Size Standard | EIA WR-137 (R70 / WG14 Layout) |
| Waveguide Flange Designation | UDR Style Flange Standard Layout Interface |
| Physical Dimensions (L x W x H) | 153 x 197 x 290 mm |
| Net Weight | 720 g (Precision Rigid Aluminum Build) |
| Body Material Profile | High-Grade Structural Machined Aluminum |
| Manufacturing Origin | Taiwan Design & Made in Taiwan (FT-RF) |
800W High-Power Domination
Robustly engineered structural core effortlessly handles massive power loads up to 800W CW, providing a highly reliable radiator for high-intensity protection operations and long-range transmitter calibration.
Symmetrical Radiation Pattern
Features a highly consistent 54-degree beamwidth in both E and H planes, providing excellent spatial illumination and geometric optimization for EMI emissions monitoring and field-strength measurements.
Taiwanese Engineering Excellence
Precision designed and manufactured in Taiwan under strict industrial quality control parameters, providing highly accurate internal flare alignments, exceptional surface coplanarity, and traceable reference criteria.
C-Band Signal Integrity
Advanced rectangular WR-137 flare geometry elements eliminate mode path anomalies across the full 5.85–8.2 GHz spectrum, offering a critical low-loss link for tactical signal management and electronic protection sub-systems.
Lightweight Aluminum Build
The 720g structural aluminum body ensures superior mechanical rigidity while minimizing structural load parameters on antenna towers, positioners, or tactical tripods during field deployments.
Request a Professional Quote
Contact our technical engineering division today to request specialized gain configurations, alternative waveguide flanges, individual certified V.S.W.R plots, or integrated coaxial adapters.
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