Fixed RF attenuators – 2 W, DC to 18 GHz: BM10021 series | Bracke Manufacturing
Bracke BM10021 fixed 50-ohm attenuators with a 7 mm interface, a 2 W power rating, DC to 18 GHz operation and attenuation values of 3, 6 or 20 dB.
The Bracke BM10021 series consists of fixed coaxial 50-ohm attenuators with a 7 mm interface. The models cover a frequency range from DC to 18 GHz and are rated for an RF power of 2 W.
The series is available with fixed attenuation values of 3, 6 and 20 dB. All versions have a maximum VSWR of 1.30:1. Attenuation accuracy is ±0.3 or ±0.5 dB, depending on the selected model.
Advantages
- Frequency range up to 18 GHz: For broadband RF and microwave signal paths from DC to 18 GHz.
- Three fixed attenuation values: Choice of 3, 6 or 20 dB according to the required signal-level reduction.
- 2 W power rating: Common specified RF power across all models in the series.
- Defined attenuation accuracy: ±0.3 dB for the 3 and 6 dB models and ±0.5 dB for the 20 dB model.
- Consistent VSWR: Maximum VSWR of 1.30:1 for every version.
- 7 mm interface: For compatible coaxial RF measurement chains and test systems.
Key features
- Product type: Fixed coaxial RF attenuator
- Manufacturer: Bracke Manufacturing
- Product series: BM10021
- Impedance: 50 ohms
- Frequency range: DC to 18 GHz
- Power rating: 2 W
- Interface: 7 mm
- Attenuation values: 3, 6 and 20 dB
- Attenuation accuracy: ±0.3 or ±0.5 dB, depending on the model
- Maximum VSWR: 1.30:1
Typical applications
- Defined signal-level reduction in 50-ohm RF and microwave signal paths
- Level adjustment between RF sources, components and measurement instruments
- RF measurement and test setups up to 18 GHz
- Integration into laboratory, test-bench and production environments
- Testing and characterisation of RF components and assemblies
- Comparative measurements using fixed attenuation values
Additional information
The appropriate BM10021 reference is selected according to the required attenuation value and permitted attenuation deviation. EMCO supports the technical selection of the appropriate model and the integration of the attenuator into the complete RF measurement chain.
Model comparison
| Reference | Attenuation | Attenuation accuracy | Frequency range | Power rating | Max. VSWR |
|---|---|---|---|---|---|
| BM10021.3 | 3 dB | ±0.3 dB | DC to 18 GHz | 2 W | 1.30:1 |
| BM10021.6 | 6 dB | ±0.3 dB | DC to 18 GHz | 2 W | 1.30:1 |
| BM10021.20 | 20 dB | ±0.5 dB | DC to 18 GHz | 2 W | 1.30:1 |
