Network analyzer is used to to measure impedance, VSWR, loss, gain, isolation, and group delay of any two ports of a multi-port network.
Vector network analyzers (VNAs) are often called "ANAs". ANA stands for "automated network analyzer".
Network analyzers fall into 2 categories.
- Vector analyzers
- Capable of measuring complex (magnitude and phase) reflection
- Capable of measuring transmission
- Scalar analyzers
Capable of measuring magnitude.