Special probes need to be used for antenna parameters measurement in the near field, these probes are open-ended waveguides. We have developed probe series based on H-shaped waveguides with superior standing-wave ratio parameters.
| Parameter | Model | ||||
| ZND-1-2 | ZND-2-4 | ZND-4-8 | ZND-8-18 | ZND-18-40 | |
| Frequency range, GHz | 1-2 | 2-4 | 4-8 | 8-18 | 18-40 |
| Connector | N-type | SMA | SMA | SMA | 2.92 |
| Standing-wave ratio | 1.5 | 1.6 | 1.6 | 1.7 | 1.8 |
| Weight, kg | 14 | 3 | 1.6 | 0.7 | 0.4 |