The Keysight (Agilent/HP) 8349B is a high-performance solid-state microwave amplifier covering the 2.0 to 20.0 GHz frequency range. It delivers excellent gain and power output to overcome systematic RF losses, drive millimeter-wave source modules, and increase the dynamic range and low-level sweep speed of network analysis systems like the HP 8757.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (HP-IB), HP 8757 System Interface |
| Display | 3-digit LED display (RF output power in dBm with 0.1 dB resolution) |
| Amplifier Technology | GaAs FET |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 100 / 120 / 220 / 240 VAC (+5%, -10%), 48 to 66 Hz, 85 VA maximum |
| Operating Temperature | 0 to 55 °C |
| Dimensions (W×H×D) | 214 mm × 133 mm × 366 mm |
| Weight | 7.3 kg |
Frequency & Gain Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 2.0 to 20.0 GHz |
| Minimum Small-Signal Gain (2.0 to 18.6 GHz) | 15 dB |
| Minimum Small-Signal Gain (18.6 to 20.0 GHz) | 13 dB |
| Typical Small-Signal Gain (2.0 to 18.6 GHz) | 19 dB |
| Typical Small-Signal Gain (18.6 to 20.0 GHz) | 17 dB |
| Typical Small-Signal Gain Flatness | ±4.0 dB (2.0 to 20.0 GHz) |
Power & Noise Performance
| Parameter | Value |
|---|---|
| Minimum Leveled Output Power (2.0 to 18.6 GHz) | +19 dBm (80 mW) (at +5 dBm RF input) |
| Minimum Unleveled Output Power (2.0 to 18.6 GHz) | +20 dBm (100 mW) (at +5 dBm RF input) |
| Minimum Leveled Output Power (18.6 to 20.0 GHz) | +17 dBm (50 mW) (at +5 dBm RF input) |
| Minimum Unleveled Output Power (18.6 to 20.0 GHz) | +18 dBm (63 mW) (at +5 dBm RF input) |
| Internal Leveled Power Flatness (2.0 to 18.6 GHz) | ±1.25 dB |
| Internal Leveled Power Flatness (18.6 to 20.0 GHz) | ±1.5 dB |
| Maximum Continuous RF Input Power (CW) | +22 dBm |
| Maximum Noise Figure (2.0 to 18.6 GHz) | 13 dB |
| Maximum Noise Figure (18.6 to 20.0 GHz) | 13 dB |
| Typical Noise Figure | 11 dB |
| Typical Third-Order Intercept Point (IP3) | +30 dBm |
| Harmonics at +20 dBm Output (2.0 to 18.6 GHz) | < -20 dBc |
| Harmonics at +18 dBm Output (18.6 to 20.0 GHz) | < -20 dBc |
| Non-Harmonic Spurious | < -55 dBc |
| Leveling Modes | Internal, External, Unleveled |
Impedance & Port Characteristics
| Parameter | Value |
|---|---|
| Input VSWR (2.0 to 18.6 GHz) | < 2.8:1 |
| Input VSWR (18.6 to 20.0 GHz) | < 3.8:1 |
| Output VSWR, Unleveled (2.0 to 18.6 GHz) | < 2.5:1 |
| Output VSWR, Unleveled (18.6 to 20.0 GHz) | < 3.0:1 |
| Output VSWR, Leveled (2.0 to 18.6 GHz) | < 1.5:1 |
| Output VSWR, Leveled (18.6 to 20.0 GHz) | < 1.8:1 |
| Nominal Impedance | 50 Ω |
| Typical Reverse Isolation | > 50 dB |
Connectors & Interfaces
| Parameter | Value |
|---|---|
| RF Input Connector | Type-N female |
| RF Output Connector | Type-N female |
| RF Port Location | Front Panel (Option 001: Rear Panel) |
| External Leveling Input Connector | BNC female (rear panel) |
| System Interface Connector | 24-pin GPIB style (for direct connection to HP 8757 network analyzer) |
| Power Display Resolution | 0.1 dB |
Physical & Mechanical Characteristics
| Parameter | Value |
|---|---|
| Form Factor | Half-rack width, 3U height |
| Cooling Method | Internal fan (forced air) |
| Net Weight | 7.3 kg (16 lb) |
| Shipping Weight | 9.5 kg (21 lb) |
Environmental Specifications
| Parameter | Value |
|---|---|
| Storage Temperature Range | -40 to +75 °C |
Performance
| Parameter | Value |
|---|---|
| Output Power at 1 dB Compression (2.0 to 18.6 GHz) | >= +20 dBm |
| Output Power at 1 dB Compression (18.6 to 20.0 GHz) | >= +17 dBm |
Inputs & Outputs
| Parameter | Value |
|---|---|
| Recorder Output Voltage | 0 to 1 V (10 mV/dB) |
Options
| Parameter | Value |
|---|---|
| Option 001 | Rear panel RF Input and RF Output |
| Option 002 | Rear panel RF Input and front panel RF Output |
Interfaces
| Parameter | Value |
|---|---|
| System Interface Compatibility | HP 8350B, HP 8340B, HP 8341B, HP 8757 |
Power Requirements
| Parameter | Value |
|---|---|
| AC Input Voltage | 100 / 120 / 220 / 240 V AC (+10%, -15%) |
| AC Input Frequency | 48 to 66 Hz |
| Power Consumption | 85 VA |
Pulse Transmission
| Parameter | Value |
|---|---|
| Pulse Transmission Rise/Fall Time | < 10 ns |
Leveling & Control
| Parameter | Value |
|---|---|
| Leveled Output Power Range (2.0 to 18.6 GHz) | +15 to +20 dBm |
| Leveled Output Power Range (18.6 to 20.0 GHz) | +12 to +17 dBm |
| Internal Leveled Power Accuracy (2.0 to 18.6 GHz) | ±1.25 dB |
| Internal Leveled Power Accuracy (18.6 to 20.0 GHz) | ±1.5 dB |
| Digital Power Display Range | +0.0 to +25.0 dBm |
Technology
Solid State GaAs FET
Applications
RF and microwave signal amplification, network analyzer dynamic range extension, millimeter-wave source drive