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Waveguide Input Antennas (WI)
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STANDARD GAIN WAVEGUIDE HORN ANTENNAS
Waveguide Input Antenna (WI)
FT-RF Waveguide Standard Gain Horns (Waveguide Input antennas) are high-precision pyramidal-shaped broadband passive devices. These standard gain horns are primary tools used to calibrate other antennas and evaluate their gain with high accuracy.
Constructed from high-grade Aluminum, our broadband waveguide horns offer durability and stable performance across 320 MHz up to 75 GHz. Most models are fully RoHS compliant.
*Custom gain values, specialized flange options, and custom mounting configurations available upon request.
⚡ Next-Gen Engineering Highlights
Standard Gain Reference
Primary calibration standard engineered for high-precision antenna characterization and gain evaluation.
Broadband Spectrum
Multi-octave coverage spanning 320 MHz up to 75 GHz across standardized rectangular waveguide bands.
Precision Aluminum Build
High-grade aluminum pyramidal waveguide construction ensures high durability and repeatable performance.
Linear Polarization & RoHS
High linear polarization purity and full compliance with RoHS environmental standards.
Key Operational Applications:
| Key Technical Parameter | Specification Overview |
|---|---|
| Frequency Coverage | 320 MHz to 75.0 GHz Broadband Coverage |
| Material Architecture | Precision Machined Aluminum Pyramidal Waveguide |
| Polarization & Compliance | Linear Polarization / Fully RoHS Compliant |
| Supported Waveguide Models |
320 MHz – 75 GHz Coverage Precision Aluminum Pyramidal Reference Calibration Standard
🛠️ Customization & Engineering Services
We accept custom designs and precision manufacturing tailored to your specific requirements:
- Specific Gain Customization: Tailored horn gain values across target frequencies.
- Flange Options: UG, CPR, UBR, and custom precision alignment flanges.
- Calibration Deliverables: Individual Gain & Pattern Traceable Calibration Reports.
📐 Recommended Testing Accessories
Enhance your measurement setup with compatible mounting and RF equipment:
WI-42-UBR-20
WR42 Waveguide Input Horn Antenna Flange: UBR UG-419/U without adapter, 18 GHz to 26.5 GHz 20dbi
View Details
FT-RF
| Frequency Range: | 18.0 - 26.5 GHz |
| Antenna Type: | Standard Gain Horn |
| Nominal Gain: | 20 dBi |
| Waveguide Size: | WR42 (K-Band) |
| Stock: | 43 |
| 2026/06/09 | |
WI-42-UBR-25
WR42 Waveguide Horn Antenna without Adapter, UBR UG-419/U Flange, 18 GHz to 26.5 GHz 25dBi
View Details
FT-RF
| Frequency Range: | 18.0 - 26.5 GHz |
| Antenna Type: | Standard Gain Horn |
| Nominal Gain: | 25 dBi |
| Waveguide Size: | WR42 (K-Band) |
| Stock: | 0 |
| 2026/06/09 | |
WI-062-UBR-10
WR62 12.4 GHz to 18GHz, 10dbi, Waveguide Horn Input Flange: UBR UG-2664/U
View Details
FT-RF
| Frequency Range: | 12.4 - 18.0 GHz |
| Antenna Type: | Standard Gain Horn |
| Nominal Gain: | 10 dBi |
| Waveguide Size: | WR62 (Ku-Band) |
| Stock: | 20 |
| 2026/06/09 | |
FT-RF
| Frequency Range: | 12.4 - 18.0 GHz |
| Antenna Type: | Standard Gain Horn |
| Nominal Gain: | 15 dBi |
| Waveguide Size: | WR62 (Ku-Band) |
| Stock: | 45 |
| 2026/06/09 | |
FT-RF
| Frequency Range: | 12.0 - 18.0 GHz |
| Antenna Type: | Standard Gain Horn |
| Nominal Gain: | 20 dBi |
| Waveguide Size: | WR62 / WG18 |
| Stock: | 48 |
| 2026/06/09 | |
FT-RF
| Frequency Range: | 12.4 - 18.0 GHz |
| Antenna Type: | Standard Gain Horn |
| Nominal Gain: | 25 dBi |
| Waveguide Size: | WR62 (Ku-Band) |
| Stock: | 11 |
| 2026/06/09 | |
WI-90-UBR-10
WR90 Waveguide Horn Antenna UBR UG-39/U Flange, without Adapter, operating from 8.2 to 12.4GHz, 10 dbi
View Details
FT-RF
| Frequency Range: | 8.2 - 12.4 GHz |
| Antenna Type: | Standard Gain Horn |
| Nominal Gain: | 10 dBi |
| Waveguide Size: | WR90 (X-Band) |
| Stock: | 18 |
| 2026/06/09 | |
WI-90-UBR-15
WR90 Waveguide Horn Antenna Flange: UBR UG-39/U without Adapter, operating from 8.2 GHz to 12.4GHz, 15dbi gain
View Details
FT-RF
| Frequency Range: | 8.2 - 12.4 GHz |
| Antenna Type: | Standard Gain Horn |
| Nominal Gain: | 15 dBi |
| Waveguide Size: | WR90 (X-Band) |
| Stock: | 52 |
| 2026/06/09 | |
WI-112-UBR-15-BL
WR112 Waveguide Horn Antenna UBR Flange without Adapter, 7.05GHz to 10GHz, 15dbi
View Details
FT-RF
| Frequency Range: | 7.05 - 10.0 GHz |
| Antenna Type: | Standard Gain Horn |
| Nominal Gain: | 15 dBi |
| Waveguide Size: | WR112 (H-Band) |
| Stock: | 11 |
| 2026/06/09 | |
WI-90-UBR-20
WR90 Waveguide Horn Antenna without Adapter, UBR UG-39/U Flange, operating from 8.2 to 12.4 GHz, 20 dbi gain
View Details
FT-RF
| Frequency Range: | 8.2 - 12.4 GHz |
| Antenna Type: | Standard Gain Horn |
| Nominal Gain: | 20 dBi |
| Waveguide Size: | WR90 (X-Band) |
| Stock: | 27 |
| 2026/06/09 | |
WI-90-UBR-25-BL
WR90 Waveguide Horn Antenna UBR UG-39/U Flange, without Adapter, operating from 8.2 to 12.4GHz, 25 dbi
View Details
FT-RF
| Frequency Range: | 8.2 - 12.4 GHz |
| Antenna Type: | Standard Gain Horn |
| Nominal Gain: | 25 dBi (High Gain) |
| Waveguide Size: | WR90 (X-Band) |
| Stock: | 4 |
| 2026/06/09 | |
WI-137-UAR-20
WR137 5.85GHz to 8.2GHz 20dbi Waveguide Horn Antenna without Adapter, UAR Flange
View Details
FT-RF
| Frequency Range: | 5.85 - 8.2 GHz |
| Antenna Type: | Standard Gain Horn |
| Nominal Gain: | 20 dBi |
| Waveguide Size: | WR137 (C-Band) |
| Stock: | 0 |
| 2026/06/09 | |
