The Rohde & Schwarz ZNBT26 is a true multiport vector network analyzer delivering high-speed, high-accuracy measurements across 8 integrated test ports. Operating from 100 kHz to 26.5 GHz, this instrument eliminates the signal losses inherent in switch matrix architectures, providing superior dynamic range, output power stability, and trace noise performance. Each port features its own reflectometer, enabling simultaneous phase-coherent measurements across all channels without cross-talk or switching artifacts.
Designed for RF component characterization, module development, and production testing, the ZNBT26 supports complex multiport analysis with over 100 traces and channels. Frequency-converting capabilities enable harmonic, intermodulation, and conversion loss measurements using independent synthesizers. Full integration with embedding/deembedding tools streamlines fixture and PCB deembedding workflows, while electronic step attenuators enhance receiver power handling to reduce external component requirements.
Technical Specifications
• Frequency Range: 100 kHz to 26.5 GHz
• Ports: 8 (base unit); upgradeable to 12, 16, 20, or 24 ports
• Receivers: Up to 24 fully phase-coherent receivers
• Dynamic Range: 140 dB maximum
• Sweep Time: 2.7 ms for 201-point sweep
• IF Bandwidth: 1 Hz to 10 MHz
• Power Sweep Range: 100 dB
• Output Power: -60 dBm to +8 dBm
• Test Port Connectors: 2.92 mm (m)
• Temperature Stability: 0.01 dB/°K
– Key Features
• True multiport architecture with one reflectometer per test port—no switching losses
• Simultaneous measurement and LAN/GPIB data transfer during active sweeps
• Multiport calibration: TOSM, TSM, TRL/LRL, UOSM methods
• Frequency-converting measurements with independent source and receiver synthesizers
• High-power receiver design with electronic step attenuators
• Automated calibration support for up to 24 ports
– Typical Applications
• Multi-element component and module characterization
• Amplifier and mixer frequency conversion analysis
• Harmonic and intermodulation product measurement
• In-fixture device testing with deembedding
• Production test automation via LAN, GPIB, or USB
– Compatibility & Integration
Remote control via LAN, GPIB, or USB for automated test system integration. Compatible with third-party deembedding tools for fixture and probe characterization.
