Fixed RF attenuators – SMB, 2 W and DC to 4 GHz: BM10089 series | Bracke Manufacturing

The Bracke BM10089 series consists of fixed coaxial RF attenuators for 50-ohm signal paths with an SMB interface. All models cover a frequency range from DC to 4 GHz and have a specified power rating of 2 W.

The series is available with fixed attenuation values of 1, 2, 3, 6, 10, 20 and 30 dB. Attenuation accuracy ranges from ±0.3 to ±0.75 dB, depending on the selected model. A maximum VSWR of 1.25:1 is specified for every listed reference.

Advantages

• Frequency range from DC to 4 GHz: Common specified frequency coverage across all models.
• SMB interface: For compatible coaxial 50-ohm RF signal paths.
• Seven fixed attenuation values: Choice of 1, 2, 3, 6, 10, 20 or 30 dB.
• 2 W power rating: Common specified RF power across the series.
• Defined attenuation accuracy: Model-specific values from ±0.3 to ±0.75 dB.
• Consistent maximum VSWR: 1.25:1 for all listed versions.

Key features

• Product type: Fixed coaxial RF attenuator
• Manufacturer: Bracke
• Product series: BM10089
• Impedance: 50 ohms
• Interface: SMB
• Frequency range: DC to 4 GHz
• Power rating: 2 W
• Attenuation values: 1, 2, 3, 6, 10, 20 and 30 dB
• Attenuation accuracy: ±0.3 to ±0.75 dB, depending on the model
• Maximum VSWR: 1.25:1

Typical applications

• Defined signal-level reduction in coaxial 50-ohm RF signal paths
• Level adjustment between RF sources, components and measurement instruments
• RF measurement and test setups up to 4 GHz
• Testing and characterisation of RF components and assemblies
• Integration into laboratory, development and production environments
• Signal conditioning in systems using SMB interfaces

Additional information

The appropriate BM10089 reference is selected according to the required attenuation value and permitted attenuation deviation. EMCO supports the technical selection of the appropriate model and its positioning within the complete RF measurement or system chain.

Model comparison