The Rohde & Schwarz ZRB2 is a precision SWR bridge for broadband impedance and reflection coefficient measurements. It measures the magnitude and phase of reflection coefficients across filters, amplifiers, mixers, and antennas. Exceptional directivity and return loss performance enable accurate characterization from DC coupling through microwave frequencies, with 50 Ω and 75 Ω impedance options available.
Technical Specifications
Frequency Range: 5 MHz to 3 GHz (standard 50 Ω); 5 MHz to 2 GHz (75 Ω)
Characteristic Impedance: 50 Ω or 75 Ω
Directivity: ≥ 46 dB to 2 GHz; ≥ 40 dB to 2.5 GHz; ≥ 34 dB to 3 GHz
Return Loss at Test Port: > 26 dB
Maximum Power: 0.5 W
Connector Type: N-type (female or male configuration options)
Operating Temperature: 0 to +50°C
Storage Temperature: −40 to +70°C
– Key Features
• High directivity across the measurement band eliminates errors from multiple reflections between the bridge and device under test
• Return loss performance exceeds 26 dB, ensuring low test port discontinuities
• Dual impedance options (50 Ω and 75 Ω) accommodate both communications and video RF applications
• N-type connectors provide secure, repeatable connections for production and lab environments
• Measurement accuracy limited only by directivity; reflection coefficients smaller than directivity cannot be measured directly
– Typical Applications
• Antenna tuning and impedance matching verification
• Filter and amplifier reflection coefficient characterization
• Mixer and component reflection measurement
• RF diagnostics and network analysis
– Compatibility & Integration
The ZRB2 integrates with Rohde & Schwarz network and spectrum analysis platforms: R&S ETL, R&S ZVL, R&S ZVT, R&S ZVB, R&S ZVA, and R&S FSH Series analyzers.
