The Agilent/Keysight 85520A is a four-standard mechanical calibration kit delivering Open, Short, Load, and Through (OSLT) references for RF network analyzer calibration. Operating across DC to 26.5 GHz with 3.5 mm male connectors and 50 Ω impedance, this compact module establishes traceable calibration foundations for precision S-parameter measurements.
Technical Specifications
Frequency Range: DC to 26.5 GHz
Connector Type: 3.5 mm male
Impedance: 50 Ω
Load Return Loss:
• 0 to 5 GHz: ≥ 42 dB
• 5 to 15 GHz: ≥ 36 dB
• 15 to 26.5 GHz: ≥ 32 dB
Open Phase Error:
• 0 to 5 GHz: ≤ 1.5°
• 5 to 15 GHz: ≤ 3.0°
• 15 to 26.5 GHz: ≤ 4.5°
Short Phase Error:
• 0 to 5 GHz: ≤ 1.0°
• 5 to 15 GHz: ≤ 2.5°
• 15 to 26.5 GHz: ≤ 4.0°
Through Standard:
• Insertion Loss (typical): ≤ 0.035 dB × √(f/GHz) for male-male connectors
• Electrical Delay: 115.888 ps for male-male connectors
Load DC Resistance: 50 Ω ± 0.5 Ω
Dimensions: 70 mm × 39 mm × 14 mm
Weight: 0.03 kg
Operating Temperature: +18 °C to +28 °C
Storage Temperature: -40 °C to +70 °C
– Key Features
• Full OSLT calibration suite in a single compact module
• Broadband coverage to 26.5 GHz with controlled phase and return loss
• Load standard maintains ≥ 32 dB return loss across the entire frequency range
• Through standard supports non-insertable device calibration (cables, filters, male-male assemblies)
• Tight mechanical tolerances: 50 Ω ± 0.5 Ω load resistance
– Typical Applications
• Network analyzer calibration and verification
• Transmission line and filter characterization
• Device S-parameter measurement setup
• Periodic calibration validation and standards traceability
– Compatibility & Integration
The 85520A integrates with RF instruments requiring 3.5 mm male connectors and 50 Ω system impedance. Connector torque specification is 8 lb-inch (90 N-cm). Protective caps are recommended during storage. Annual inspection intervals maintain measurement integrity.
