Furthermore, many computers and servers are setup in “networks” that are all linked together to the cloud. In addition, most of our homes, offices and commercial venues all have Wi-Fi, or wireless LAN “networks”. For instance, most people today have a cellular or mobile phone that runs on a 3G or 4G “network”.
Today, the term “network analyzer”, is used to describe tools for a variety of “networks” (Figure 1). Finally, we'll review typical VNA measurements such as swept frequency measurements, time domain measurements, and swept power measurements and how they're used and why they are important. We'll review various VNA calibration techniques and show how VNA user calibrations help achieve the best accuracy possible. We'll define S-Parameters, the fundamental VNA measurement, and how best to use them when evaluating your Device-Under-Test or DUT. This paper discusses why VNAs are used and how they are unique compared to other RF test equipment. VNAs are used to quickly and accurately validate the performance of these RF components and devices. In manufacturing applications, RF components or devices are assembled and tested based on a certain set of specifications.
VNAs are used to validate these design simulations. In design applications, simulations are used to accelerate time-to-market by reducing physical prototype iterations. Today, VNAs are used in a wide range of RF and high frequency applications. The Vector network analyzer or VNA is an important test instrument that has helped make countless modern wireless technologies possible.
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