In a previous post, I dida teardown of a NanoVNA-F V2. This time let’s take a look at aLiteVNAvector network analyzer. One of the key differences between the LiteVNA and the NanoVNA-F V2 is that LiteVNA has a frequency range from 50 kHz all the way to 6.3 GHz which essentially...
Vector-network analyzers (VNAs) designed for bench and rack applications are often rather large units. Yes, there are handheld VNAs, but sometimes a smaller bench VNA will fit the bill. That's where the ZNLE series for Rohde & Schwarz comes in. Weighing 6 kg (13.2 lbs) with a depth of...
and the forward and reverse RF is sampled on both its input and output with a set of directional couplers. Each of the four couplers feeds what amounts to an SDR, and the resulting samples are processed by a computer. His write-up contains a full run-down of each section of the circui...