The Wiltron 87A50 is a precision SWR bridge that measures standing wave ratio and return loss across the 2 GHz to 18 GHz band. It preserves both phase and amplitude of reflected signals, enabling accurate RF characterization in network analyzer systems and swept-frequency test setups. With 35 dB directivity, 6.5 dB insertion loss, and a built-in 50 Ohm termination, this bridge delivers frequency-dependent accuracy ranging from ±0.018 + 0.32p at 2–3 GHz to ±0.018 + 0.15p at 4–18 GHz, where p is the measured reflection coefficient. The compact design (7.3 cm × 5.2 cm × 2.9 cm, 340 g) integrates GPC-7 test port and Type N(f) RF connectors, handling input power up to 0.5 W.
Technical Specifications
• Frequency Range: 2 GHz to 18 GHz
• Directivity: 35 dB
• Insertion Loss: 6.5 dB nominal
• Maximum Input Power: 0.5 W
• Characteristic Impedance: 50 Ohm
• Test Port Connector: GPC-7
• RF Connectors: Type N(f) input and output
• Accuracy: ±(0.018 + 0.32p) at 2–3 GHz; ±(0.018 + 0.23p) at 3–4 GHz; ±(0.018 + 0.15p) at 4–18 GHz
• Built-in Termination: Yes
• Dimensions: 7.3 cm × 5.2 cm × 2.9 cm (excluding connectors)
• Weight: 340 g
– Key Features
• Phase and amplitude preservation enables direct comparison measurements within network analyzer platforms
• Low-level SWR capability through RF output amplification prior to detection
• Frequency-dependent accuracy specifications referenced to reflection coefficient
• Integrated 50 Ohm termination for self-contained operation
– Typical Applications
• Fixed- and swept-frequency SWR and return loss measurement
• Microwave component characterization: amplifiers, directional couplers, attenuators, filters, splitters, and terminations
• Phase-sensitive RF measurements in automated test systems
– Compatibility & Integration
The Wiltron 87A50 integrates with network analyzer systems for phase-comparison and return-loss measurements. Standard Type N(f) RF connectors and GPC-7 test port support integration into existing test benches.
