Adapter
Understanding Adapter
RF adapters provide mechanical and electrical transitions between different connector types (e.g., SMA to N-type), genders (male-to-male, female-to-female), or interface standards (coaxial to waveguide). They maintain impedance continuity to minimize reflections.
Adapter quality is specified by insertion loss, VSWR, and frequency range. Precision adapters for calibration and measurement applications achieve VSWR below 1.05 and insertion loss under 0.1 dB, while general-purpose adapters have relaxed specifications.
Frequently Asked Questions
Do adapters affect measurement accuracy?
Yes, every adapter adds insertion loss and mismatch uncertainty. Precision calibration techniques (TRL, SOLT) account for adapter effects, but minimizing adapter usage improves accuracy.
What is an in-series vs between-series adapter?
In-series adapters connect the same connector family (e.g., SMA male to SMA male). Between-series adapters connect different families (e.g., SMA to N-type).