Agilent / Keysight U3045AM04 50 GHz, 4-Port Mechanical Test Set

The Agilent/Keysight U3045AM04 is a 50 GHz, 4-port mechanical test set that extends 4-port network analyzer capabilities to enable 8-port full crossbar measurements. When integrated with a PNA or PNA-X network analyzer, it supports N-port calibration for precise characterization of high-frequency devices and components across demanding test and calibration applications.

– Technical Specifications

• Frequency Range: Up to 50 GHz
• Ports: 4 (expands host analyzer from 4 ports to 8-port measurement capability)
• Measurement Mode: 8-port full crossbar
• Calibration: N-port capable
• RF Connectors: 2.4 mm male
• Coupling Factor: −18 dB (coupled arm, 1 GHz to 50 GHz); −53 dB (below 1 GHz)
• Insertion Loss (CPLR THRU path): <4 dB at 50 GHz
• Switches: Mechanical with internal and external 50 Ω termination
• Weight: Approximately 50 lbs

– Key Features

• Mechanical switch architecture with 50 Ω termination on both ports
• Low insertion loss performance across the full frequency band
• Designed for lab bench or tabletop mounting with adequate structural support
• Temperature stability requirement: ±1°C around calibration ambient for accuracy-critical measurements
• Operating humidity: 80% RH up to 31°C, decreasing linearly to 50% RH at 40°C
• Passive RF path with predictable, repeatable coupling characteristics

– Electrical Characteristics

Maximum power handling is dependent on the host PNA or PNA-X network analyzer specifications. Ensure adequate ventilation when installed in a cabinet; forced convection is required if total cabinet power dissipation exceeds 800 watts.

– Compatibility & Integration

The U3045AM04 integrates directly with Keysight PNA and PNA-X 4-port network analyzers via dedicated test set I/O interface. This pairing transforms a standard 4-port analyzer into an 8-port measurement system, enabling full matrix characterization of complex multi-port devices without requiring external switching matrices.