Wilton Network Analyzer Universal Test Fixture 3680K

Wilton Network Analyzer Universal Test Fixture 3680K

This is an untested used item taken from a working environment.

Designed for precision measurement of microwave substrates, the Anritsu 3680 UTF enables accurate, repeatable transitions between coaxial connectors and on-substrate microstrip or CPW devices.

⚙️ Key Features

• Frequency Coverage:

  • Model 3680‑20: DC to 20 GHz via 3.5 mm connector

  • Model 3680K: DC to 40 GHz using K-connector

  • Model 3680V: DC to 60 GHz via V-connector

• Universal Adjustability:

  • Accommodates substrates up to 2 in (50 mm) long without additional center sections

  • Spring-loaded jaws ensure consistent electrical contact on substrates from 5 mil to 75 mil thickness

  • Dielectric spacers minimize fringing capacitance for superior repeatability (±0.1 dB)

• Flexible Test Configurations:

  • Supports offset line testing up to ±0.5 in (±2.5 cm) (±1 in / 2.5 cm for 3680‑20) for inline or parallel circuit measurement

  • Right-angle launcher accessory enables multi-port and 90° test setups with high fidelity

  • Bias probe attachment (Model 36803) for injecting power or holding components directly on the substrate

  • MMIC attachment (Model 36802) for testing miniature, uncarried substrates with precise spring tab contact

  • Calibration & Verification:

  • Compatible with Open‑Short‑Load (OSL) or Line‑Reflect‑Line (LRL) kits for both microstrip and CPW substrates

  • Verification kits include Beatty standards and offset terminations to confirm calibration integrity in-situ

📐 Dimensions & Specs

🎯 Applications & Advantages

• Compatible with both Vector and Scalar over coax VNAs for automated or manual measurements

• Eliminates need for custom fixtures across different substrate formats, reducing setup time

• Maintains ±0.1 dB repeatability, critical for accurate characterization across GHz frequencies

• Modular add-ons (right-angle, bias, MMIC) support a wide variety of DUT geometries and test scenarios