The Rohde & Schwarz ZNBT40 is an 8-port vector network analyzer operating from 9 kHz to 40 GHz, expandable to 24 integrated test ports for simultaneous multiport characterization. Built around a true multiport architecture with one reflectometer per port, it eliminates switch matrix losses and delivers dynamic range to 135 dB. The instrument performs complete S-parameter analysis—including all 576 parameters for 24-port devices—alongside time-domain and impedance measurements at sweep speeds as fast as 1.9 ms per 201-point sweep.
– Technical Specifications
• Frequency Range: 9 kHz to 40 GHz
• Test Ports: 8 standard; expandable to 24 ports
• Port Connectors: 2.92 mm male
• Port Impedance: 50 Ohms
• Dynamic Range: 95 dB to 135 dB
• Output Power: −85 dBm to +10 dBm
• Power Sweep Range: 100 dB
• IF Bandwidth: 1 Hz to 10 MHz
• Harmonics: < −30 dBc
• Sweep Time: 1.9 ms minimum for 201 points
• Power Handling: High compression point with electronic step attenuators
• Dimensions: 462 mm × 238 mm × 611 mm
• Weight: 38 kg
– Key Features
• No integrated display; controlled via external monitor, mouse, keyboard, or touchscreen
• One reflectometer per port eliminates switch matrix losses
• Simultaneous LAN/GPIB data readout while next sweep executes
• Electronic variable output power control
• High power-handling inputs with electronic attenuators
• Benchtop or rackmount operation
– Typical Applications
• 5G NR, radar, MIMO/SISO/MISO multi-antenna system testing
• Signal integrity and specification compliance measurements
• USB-C and multiport RF component characterization
• Production and service environments requiring rapid measurement cycles
– Compatibility & Integration
• USB and computer-controlled via external interfaces
• Handler I/O interface available for automated test system control
• Designed for seamless integration into production automation workflows
