The Agilent / Keysight 85027C is a high-performance directional bridge designed for high-precision reflection measurements over a wide frequency range up to 18 GHz. It is engineered to operate seamlessly with HP/Agilent Scalar Network Analyzers, offering outstanding directivity and test port match for accurate microwave measurement applications.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | Custom multi-pin analog interface cable for Scalar Network Analyzer connection |
Physical
| Parameter | Value |
|---|---|
| Power Supply | Powered directly by the connected Scalar Network Analyzer |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 124 mm × 26 mm × 147 mm |
| Weight | 0.5 kg |
| Integrated Cable Length | 1.5 m |
| Shipping Weight | 1.0 kg |
Frequency and Impedance
| Parameter | Value |
|---|---|
| Frequency Range | 10 MHz - 18 GHz |
| Nominal Impedance | 50 Ω |
| Test Port Impedance | 50 Ω |
RF Performance
| Parameter | Value |
|---|---|
| Minimum Directivity (12.4 to 18 GHz) | ≥ 34 dB |
| Minimum Directivity (0.01 to 12.4 GHz) | ≥ 36 dB |
| Typical Insertion Loss (at 18 GHz) | 8.0 dB |
| Test Port Match (0.01 to 8.4 GHz) | SWR ≤ 1.15 (Equivalent Source Match) |
| Test Port Match (8.4 to 12.4 GHz) | SWR ≤ 1.25 (Equivalent Source Match) |
| Test Port Match (12.4 to 18 GHz) | SWR ≤ 1.43 (Equivalent Source Match) |
Power and Electrical Ratings
| Parameter | Value |
|---|---|
| Maximum Continuous RF Input Power | +23 dBm |
| Maximum DC Voltage (RF Port) | ±10 V |
Connector and Port Configurations
| Parameter | Value |
|---|---|
| RF Input Connector Type | Type-N |
| RF Input Connector Gender | Female |
| Test Port Connector Type | Type-N |
| Test Port Connector Gender | Female |
Compatibility
| Parameter | Value |
|---|---|
| Compatible Scalar Network Analyzers (AC & DC modes) | Agilent 8757 |
| Compatible Scalar Network Analyzers (AC mode only) | Agilent 8756, Agilent 8755 |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -40 to +75 °C |
Performance
| Parameter | Value |
|---|---|
| Internal Detector Type | Schottky diode |
| Minimum Directivity (0.01 to 8.4 GHz) | 40 dB |
| Minimum Directivity (8.4 to 12.4 GHz) | 36 dB |
| Insertion Loss (Input to Test Port) at 10 MHz | 6.5 dB (nominal) |
| Insertion Loss (Input to Detector) at 10 MHz | 6.5 dB (nominal) |
| Insertion Loss (Input to Detector) at 18 GHz | 8.0 dB (nominal) |
| Variation with Frequency (Input to Test Port, 0.01 to 8.4 GHz) | ±0.8 dB |
| Variation with Frequency (Input to Test Port, 0.01 to 12.4 GHz) | ±1.1 dB |
| Variation with Frequency (Input to Test Port, 0.01 to 18 GHz) | ±1.5 dB |
| Variation with Frequency (Input to Detector, 0.01 to 8.4 GHz) | ±1.2 dB |
| Variation with Frequency (Input to Detector, 0.01 to 12.4 GHz) | ±1.5 dB |
| Variation with Frequency (Input to Detector, 0.01 to 18 GHz) | ±2.0 dB |
Options
| Parameter | Value |
|---|---|
| Option 005 Test Port Connector | 3.5 mm (male) |
Technology
RF and Microwave Directional Bridge
Applications
Reflection and transmission measurements with scalar network analyzers