The Anritsu 3680-20 is a universal test fixture for precise RF and microwave measurements on substrate-mounted devices operating from DC to 20 GHz. It provides a stable coaxial-to-transmission-line interface for characterizing microstrip and coplanar waveguide (CPW) devices with exceptional repeatability and return loss performance. Spring-loaded jaws deliver repeatable electrical contact while accommodating substrate thicknesses from 0.13 mm to 1.9 mm, making it ideal for laboratory and production environments requiring accurate device characterization.
Technical Specifications
• Frequency Range: DC to 20 GHz
• Return Loss: >17 dB across DC to 20 GHz
• Repeatability: <±0.10 dB from DC to 20 GHz
• Connector Type: APC-3.5 TM
– Key Features
• Substrate Support: Accepts microstrip and CPW devices on substrates 0.13 mm to 1.9 mm thick
• Substrate Dimensions: Maximum length 100 mm; minimum length 0.5 cm; maximum line offset ±25 mm
• Spring-Loaded Jaws: Enable consistent mechanical and electrical contact through clamp action
• Coax-to-Launcher Integration: Integrated coaxial launchers on input and output connectors
• Bias Capability: Supports optional bias probes (up to four Model 36803 probes) or bias tee injection through RF connections
• Physical Dimensions: 4.9 W × 7 L × 2.5 H inches
– Typical Applications
• Characterization of active devices, mixers, and converters on substrate
• S-parameter measurement of microstrip and CPW transmission line structures
• Small-signal device testing requiring precise, repeatable contact
– Compatibility & Integration
Designed for use with Vector Network Analyzers (VNAs) and Scalar Network Analyzers (SNAs). Optional accessories include the Model 36801 Right-Angle Launcher for up to four RF connections, Model 36802 MMIC Attachment for very small substrates, and calibration/verification kits for enhanced measurement accuracy.
