The Keysight (Agilent/HP) 85027B is a high-performance directional bridge designed for high-accuracy reflection measurements from 10 MHz to 26.5 GHz. Highly compatible with Agilent/HP scalar network analyzers, it features integrated detection capabilities for both AC and DC signal modes, offering high directivity and exceptional test port match in coax environments.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | Integrated multi-pin cable for connection to Agilent/HP Scalar Network Analyzers |
Physical
| Parameter | Value |
|---|---|
| Power Supply | Host-powered via connected scalar network analyzer |
| Operating Temperature | 0 to +55 °C |
| Dimensions (W×H×D) | 22 mm × 26 mm × 178 mm |
| Weight | 0.5 |
| Control Cable Length | 1.5 m (5 ft) |
Frequency & Impedance
| Parameter | Value |
|---|---|
| Frequency Range | 10 MHz to 26.5 GHz |
| Nominal Impedance | 50 Ω |
RF Performance
| Parameter | Value |
|---|---|
| Directivity (0.01 to 20 GHz) | ≥ 40 dB |
| Maximum Insertion Loss (0.01 to 18 GHz) | 6.5 dB |
| Maximum Insertion Loss (18 to 26.5 GHz) | 8.0 dB |
Power & Electrical Ratings
| Parameter | Value |
|---|---|
| Maximum Continuous RF Input Power | +23 dBm |
| Maximum DC Input Voltage | ±10 V |
Connector & Port Configurations
| Parameter | Value |
|---|---|
| RF Input Connector Type | 3.5 mm |
| RF Input Connector Gender | Female |
| Test Port Connector Type | 3.5 mm |
| Test Port Connector Gender | Female |
Calibration & Compatibility
| Parameter | Value |
|---|---|
| Compatible Analyzers (AC/DC Detection) | Agilent 8757 |
| Compatible Analyzers (AC Detection Only) | Agilent 8756, Agilent 8755 |
| Detection Signal Support | AC and DC detection modes (analyzer dependent) |
Performance
| Parameter | Value |
|---|---|
| Directivity (20 to 26.5 GHz) | ≥ 31 dB |
| Test Port SWR (0.01 to 18 GHz) | ≤ 1.15 |
| Test Port SWR (18 to 20 GHz) | ≤ 1.25 |
| Test Port SWR (20 to 26.5 GHz) | ≤ 1.45 |
| RF Input SWR (0.01 to 18 GHz) | ≤ 1.35 |
| RF Input SWR (18 to 26.5 GHz) | ≤ 1.50 |
Measurement Capabilities
| Parameter | Value |
|---|---|
| Dynamic Range (AC Mode) | +16 to -55 dBm |
| Dynamic Range (DC Mode) | +16 to -50 dBm |
Technology
RF & Microwave
Applications
Reflection measurements with scalar network analyzers