FREQUENCY
5.85–8.2 GHz
TYP. PEAK GAIN
15 dBi
TYP. VSWR
< 1.5:1
MATERIAL
Aluminum (AlSi10Mg)
Compact & lightweight
All-metal body, 3.5 × 3.13 × 4.5 in.
Symmetric E & H patterns
Matched ~38° beamwidths with low sidelobes from the exponential flare.
Designed in the USA
Designed, assembled, and tested in California.
Product Details
The EHA-WR137 is a C-band exponentially-tapered horn antenna covering 5.85 to 8.2 GHz with symmetric E- and H-plane radiation patterns and a nominal gain of 12 to 15 dBi. The smooth exponential flare suppresses sidelobes and produces a clean, rotationally symmetric main beam, making it well suited to antenna gain reference and measurement, EMC testing, and use as a reflector or lens feed. It presents a standard WR-137 (UG-441/U) waveguide flange; an optional AntenX SMA-WR137 coax-to-waveguide adapter adds an SMA interface for direct cabling.
- Exponential taper produces symmetric E- and H-plane patterns (typ ~38° HPBW) with low sidelobes across the full 5.85 to 8.2 GHz band.
- Suited to antenna gain reference and measurement, EMC testing, reflector and lens feeds, and over-the-air test setups.
- Standard WR-137 (UG-441/U) waveguide flange; pair with the AntenX SMA-WR137 coax-to-waveguide adapter for an SMA (coaxial) interface.
- Compact, lightweight all-metal aluminum construction.
- Available as the bare horn or bundled with the SMA-WR137 adapter; choose the model when ordering.
Specifications
General
| Design | Exponentially-tapered horn |
| Polarization | Linear (H/V by orientation) |
| Waveguide interface | WR-137, UG-441/U flange |
| Optional adapter | SMA-WR137 coax-to-WR-137 (SMA female) |
| Impedance | 50 Ω |
| Construction | Aluminum alloy (AlSi10Mg), additively manufactured, painted finish |
| Dimensions (L × W × H) | 88.9 × 79.5 × 114.3 mm (3.5 × 3.13 × 4.5 in) |
Performance over frequency
| PARAMETER | FREQUENCY | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|
| VSWR† | 5.85 – 8.2 GHz | – | 1.3 | 2.0 | – |
| Gain | 5.85 – 8.2 GHz | 12.0 | 13.5 | 15.5 | dBi |
| HPBW, E-plane | 5.85 – 8.2 GHz | 30 | 38 | 46 | deg |
| HPBW, H-plane | 5.85 – 8.2 GHz | 30 | 38 | 46 |
Specifications are typical and subject to change without notice. †VSWR is specified using the AntenX SMA-WR137 coax-to-waveguide adapter.
