A Journey Through NFC Antenna Tuning Without a VNA

A Journey Through NFC Antenna Tuning Without a VNA

Fred wanted a better way than an old-fashioned key for his family to unlock the front door, and so he decided to build a keypad entry system. That’s ideal for the rest of the family, but Fred himself has an NFC tag embedded in his hand and wanted to take advantage of that to unlock the door. In order for it to work well, he had to tune the NFC reader’s antenna, and he was able to accomplish that without using a VNA (Vector Network Analyzer).


A Journey Through NFC Antenna Tuning Without a VNA was originally published in Hackster Blog on Medium, where people are continuing the conversation by highlighting and responding to this story.