xaVNA – A low cost two port Vector Network Analyzer

xaVNA – A low cost two port Vector Network Analyzer

2329
Views
0 Comments

xaVNA is a simple and cheap vector network analyzer that allows you to easily tune up antennas, filters, and amplifiers by plugin it to USB. It is able to display smith charts/graphs on the including PC software.

The main board connects to a PC through usb and communicates via a virtual serial port device; the PC software sets the frequency and other parameters by sending two-byte register write commands, and the device sends averaged vector values representing magnitude and phase of measured wave.

The project is open source and available on github and a kickstarter campaign is live with 31 days to go.

Specifications

  • Frequency range: guaranteed 137MHz – 2500MHz, typical 135MHz – 3500MHz
  • Measurement signal level (controlled using on-board switches, iteration 1 board only): -5dBm to 10dBm, with 2dB increments
  • Measurement signal level (controlled using spi interface): -20dBm to 10dBm, with 1dB increments
  • 3 receivers: forward coupled, reverse coupled, through; can measure S11 and S21 of a two port device. To measure S22 and S12 the DUT needs to be manually reversed.

tags
vector analyzerVNA
Share

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.

view all posts by admin

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

subscribe
Archives