Fixed RF attenuators – BNC, up to 5 W and 4 GHz: BM10017 / BM10018 / BM10038 | Bracke Manufacturing
Bracke BM10017, BM10018 and BM10038 fixed 50-ohm BNC attenuators with 2 or 5 W power ratings and frequency ranges up to 4 GHz.
The Bracke BM10017, BM10018 and BM10038 series consist of fixed coaxial 50-ohm attenuators with a BNC interface. They provide defined signal-level reduction in compatible RF signal paths.
The BM10017 series is designed for frequencies from DC to 2 GHz and has a power rating of 2 W. The BM10018 series extends the frequency range to DC to 4 GHz with the same power rating. The BM10038 series also covers DC to 4 GHz and provides a higher power rating of 5 W.
Advantages
- Three product series: Selection according to the required frequency range and power rating.
- BNC interface: For compatible coaxial 50-ohm RF signal paths.
- Fixed attenuation values: Model-dependent selection from 1 to 30 dB.
- Frequency ranges up to 4 GHz: Versions for applications up to 2 or 4 GHz.
- Power ratings up to 5 W: Choice of 2 W or 5 W models.
- Consistent maximum VSWR: 1.25:1 for all listed references.
Key features
- Product type: Fixed coaxial RF attenuator
- Manufacturer: Bracke Manufacturing
- Product series: BM10017, BM10018 and BM10038
- Impedance: 50 ohms
- Interface: BNC
- BM10017: DC to 2 GHz, 2 W
- BM10018: DC to 4 GHz, 2 W
- BM10038: DC to 4 GHz, 5 W
- Attenuation values: Model-dependent, from 1 to 30 dB
- Attenuation accuracy: Model-dependent, from ±0.3 to ±0.75 dB
- Maximum VSWR: 1.25:1
Typical applications
- Defined signal-level reduction in 50-ohm RF signal paths
- Level adjustment between RF sources, components and measurement instruments
- RF measurement and test setups up to 4 GHz
- Integration into laboratory, development and production environments
- Testing and characterisation of RF components and assemblies
- Signal conditioning in systems using BNC interfaces
Additional information
The appropriate series is selected according to the maximum frequency range and required power rating. Within each series, the reference is selected according to the required attenuation value and permitted attenuation deviation. EMCO supports the technical selection and positioning of the attenuator within the complete RF measurement or system chain.
Model comparison – BM10017 series, 2 W up to 2 GHz
| Reference | Attenuation | Attenuation accuracy | Frequency range | Power rating | Max. VSWR |
|---|---|---|---|---|---|
| BM10017.1 | 1 dB | ±0.3 dB | DC to 2 GHz | 2 W | 1.25:1 |
| BM10017.2 | 2 dB | ±0.3 dB | DC to 2 GHz | 2 W | 1.25:1 |
| BM10017.3 | 3 dB | ±0.3 dB | DC to 2 GHz | 2 W | 1.25:1 |
| BM10017.6 | 6 dB | ±0.3 dB | DC to 2 GHz | 2 W | 1.25:1 |
| BM10017.10 | 10 dB | ±0.5 dB | DC to 2 GHz | 2 W | 1.25:1 |
| BM10017.20 | 20 dB | ±0.5 dB | DC to 2 GHz | 2 W | 1.25:1 |
| BM10017.30 | 30 dB | ±0.75 dB | DC to 2 GHz | 2 W | 1.25:1 |
Model comparison – BM10018 series, 2 W up to 4 GHz
| Reference | Attenuation | Attenuation accuracy | Frequency range | Power rating | Max. VSWR |
|---|---|---|---|---|---|
| BM10018.1 | 1 dB | ±0.3 dB | DC to 4 GHz | 2 W | 1.25:1 |
| BM10018.2 | 2 dB | ±0.3 dB | DC to 4 GHz | 2 W | 1.25:1 |
| BM10018.3 | 3 dB | ±0.3 dB | DC to 4 GHz | 2 W | 1.25:1 |
| BM10018.6 | 6 dB | ±0.3 dB | DC to 4 GHz | 2 W | 1.25:1 |
| BM10018.10 | 10 dB | ±0.5 dB | DC to 4 GHz | 2 W | 1.25:1 |
| BM10018.20 | 20 dB | ±0.5 dB | DC to 4 GHz | 2 W | 1.25:1 |
| BM10018.30 | 30 dB | ±0.75 dB | DC to 4 GHz | 2 W | 1.25:1 |
Model comparison – BM10038 series, 5 W up to 4 GHz
| Reference | Attenuation | Attenuation accuracy | Frequency range | Power rating | Max. VSWR |
|---|---|---|---|---|---|
| BM10038.1 | 1 dB | ±0.3 dB | DC to 4 GHz | 5 W | 1.25:1 |
| BM10038.2 | 2 dB | ±0.3 dB | DC to 4 GHz | 5 W | 1.25:1 |
| BM10038.3 | 3 dB | ±0.3 dB | DC to 4 GHz | 5 W | 1.25:1 |
| BM10038.6 | 6 dB | ±0.3 dB | DC to 4 GHz | 5 W | 1.25:1 |
| BM10038.10 | 10 dB | ±0.5 dB | DC to 4 GHz | 5 W | 1.25:1 |
| BM10038.20 | 20 dB | ±0.5 dB | DC to 4 GHz | 5 W | 1.25:1 |
