NSI-MI offers a dual polarized feed (ANT-DPF) designed to operate over a standard rectangular waveguide band covering a 18 to 26.5 GHz frequency range. This feed combines a high-performance broadband orthomode transducer with a precision circular waveguide feeding a circularly symmetric waveguide aperture. The two ports of the feed excite two orthogonal modes in the circular guide which radiate orthogonal linearly-polarized fields with cross-polarization suppression better than 35 dB.
Features
- Low gain, broad beamwidth illumination
- Low cross-polarization
- Constant beamwidth
- Dual-linear polarization
- Customizable beamwidth available
Ideal For
- Compact range testing
- Near-field testing
- Unit under test (UUT) illumination
Specifications:
| Model | ANT-DPF-18-26.5 |
| Frequency Range (GHz) | 18.0–26.5 |
| Waveguide Type | WR-42 |
| Max Power (W) | 50 |
| Connector Type | 2.92 mm (2) |
| Band | K |
| Material | Aluminum |
| Cross-polarization discrimination | > 35 dB |
| Interport isolation (port-to-port) | > 35 dB |
| Operating temperature range | 10°C–50°C |
| Gain (nominal) | 10 dBi ±0.5 dBi |
| 3 dB beamwidth | 57° ±4° |
