The HP/Agilent 35677B S-Parameter Test Set is a specialized instrument for precise measurement of S-parameters in RF and microwave devices operating from 100 kHz to 200 MHz. This test set enables forward and reverse transmission and reflection measurements without requiring device reconnection, integrating with network analyzers such as the HP 3577A for detailed component characterization. Engineers use it throughout the design, testing, and validation cycle for electronic components and systems.
## Technical Specifications
• Frequency Range: 100 kHz to 200 MHz
• Test Port Impedance: 75 Ohm
• Directivity: Greater than 40 dB
• Port Match (Test Ports 1, 2): Greater than 24 dB
• Test Ports 1, 2 Open/Short Ratio: Less than ±1 dB magnitude and ±7.5° phase
• Input Port Return Loss: Greater than 20 dB
• Output Ports A, B, R Return Loss: Greater than 26 dB
• Test Port Isolation: Greater than 100 dB
• Insertion Loss (RF Input to Test Port 1 or 2): Typically 19 dB
• Insertion Loss (RF Input to Output Ports A, B, R): Typically 31 dB
• RF Input Maximum Operating Level: +25 dBm or ±30 Vdc
• RF Input Damage Level: +27 dBm or ±30 Vdc
• Port 1 or 2 Damage Level: +27 dBm or ±30 Vdc
• Frequency Response (Transmission S21, S12): ±1 dB, ±5°
• Frequency Response (Reflection S11, S22): ±1 dB, ±5°
• Test Port Reciprocity (Transmission): Typically <±0.5 dB magnitude and <±5° phase
• Test Port Reciprocity (Reflection): Typically <±0.5 dB magnitude and <±5° phase
• Incident Power Ratio (Port 1 to Port 2): Typically <±1.5 dB
## Key Features
• Input and Output Ports A, B, R: 50 Ohm Type N female connectors
• Test Ports 1 and 2: 75 Ohm Type N female connectors
• DC Bias Inputs: BNC female, rear panel
• HP-IB programming interface for remote control
• Dimensions: 222 mm H × 426 mm W × 578 mm D
• Weight: 31 kg net; 41 kg shipping
## Compatibility & Integration
Designed for use with the HP 3577A Network Analyzer. Operates in 75 Ohm systems.
