The Keysight 85027B is a precision directional bridge for RF and microwave scalar reflection measurements across the 10 MHz to 26.5 GHz band. This 50 ohm instrument delivers high directivity and excellent test port match, enabling accurate characterization of components and systems with Keysight scalar network analyzers including the 8757, 8756, and 8755 series platforms.
Technical Specifications
Frequency Range: 10 MHz to 26.5 GHz
Impedance: 50 ohms
Directivity:
• 40 dB typical from 0.01 to 20 GHz
• 36 dB from 20 to 26.5 GHz
Test Port Match (SWR):
• <1.15 from 0.01 to 8.4 GHz
• <1.43 from 8.4 to 20 GHz
• <1.78 from 20 to 26.5 GHz
Insertion Loss:
• 6.5 dB at 10.0 MHz
• 8.0 dB at 18.0 GHz
• 10.0 dB at 26.5 GHz
Maximum Input Power: +23 dBm or +10 Volts
Typical Minimum Input Power (40 dB Return Loss): +2 dBm at 18 GHz
Connectors: 3.5 mm female (RF input and test port)
– Key Features
• Dual detection capability supports both AC and DC signal modes depending on analyzer configuration
• Compact form factor: 26 mm H × 124 mm W × 118 mm D, 0.5 kg net weight
• Superior directivity performance maintains measurement accuracy across extended frequency coverage
• Test port match performance scaled across operating band minimizes reflection uncertainty
– Typical Applications
• Component reflection and return loss characterization
• System impedance matching verification
• Cable and connector quality assessment
• Filter and amplifier reflection measurements
– Compatibility & Integration
Operates with Keysight scalar network analyzers: 8757 series (AC/DC detection modes), 8756 series (AC detection mode), and 8755 series (AC detection mode).
Supplied with 3.5 mm male open/short standard, male-to-male adapter, and male-to-female adapter.
