The Keysight (Agilent HP) 779D is a high-performance coaxial directional coupler optimized for swept measurements and reflectometer applications in the 1.7 to 12.4 GHz frequency range. It features high directivity, excellent coupling flatness, and robust power handling.
Specifications
Physical
| Parameter | Value |
|---|---|
| Dimensions (W×H×D) | 197 mm × 51 mm × 19 mm |
| Weight | 0.5 kg |
| Shipping Weight | 0.9 kg |
RF Performance Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 1.7 to 12.4 GHz |
| Nominal Coupling | 20 dB |
| Coupling Accuracy | ±0.5 dB (mean) |
| Coupling Flatness | ±0.75 dB |
| Minimum Directivity (1.7 to 4 GHz) | 30 dB |
| Minimum Directivity (4 to 12.4 GHz) | 26 dB |
| Maximum SWR | 1.2 |
| Main Line Insertion Loss | <0.60 dB |
| Nominal Impedance | 50 Ω |
Power Handling Capabilities
| Parameter | Value |
|---|---|
| Average CW Power Rating | 50 W |
| Peak Power Rating | 250 W |
Mechanical & Connector Configurations
| Parameter | Value |
|---|---|
| Connector Type | Type-N |
Connectors
| Parameter | Value |
|---|---|
| Main Line Connectors | Type-N (m) input, Type-N (f) output |
| Coupled Line Connector | Type-N (f) |
| Option 011 Configuration | Type-N female connector on all ports (replaces standard Type-N male input) |
Technology
RF & Microwave Coaxial
Applications
Swept measurements, reflectometer systems, and signal monitoring