Our test lab uses Rohde and Schwarz 40 GHz VNAs that have been modified (mostly removing the directional couplers and relays within their test sets) to reduce noise floors and internal cross-talk to allow 3-port commercial antenna testing on a far field range. While a nanoVNA may be useful for basic swept loss (S12) or tuning an antenna’s return loss (S11) they pale in comparison to a laboratory VNA. We get asked “are these nanoVNAs as good as real VNAs”. Use some scrap compressible foam in the bottom of the case to keep the PCBs and display pressed firmly up against the case’s top bezel. The case is screwed together with four screws (use #4 size pan head, 3/4″ long, Plastite, sheet-metal, or wood screws). The zip package also includes the Sketchup source CAD files so you can use the free Sketchup 3D CAD tool to make your own design modifications. We’ve been asked for the 3D case design, and you can download our 3D design and STL files here.
So Antenna Test Lab bought up some of the nanoVNA-V2’s, designed a 3D printable case, and gave them away to customer engineers for their work-at-home use (mainly in tuning antennas). This often meant paperwork was being attended to, but little antenna hardware was being created. Here is a great introductory article and here is the data repository page.ĭuring the COVID-19 pandemic, a lot of our customer’s design engineers were working from home. Probably one of the most reliable sources is this builder on Tindie. A growing number of vendors will be organizing hardware builds and making them available for around $60.
Recently, a new one was designed by OwOComm and released as open-source. Various “nanoVNA” hobbyist products have been available for a couple of years now. NanoVNA-V2 3D Printed Enclosure The $60 VNA from 50kHz – 3GHz
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