PCB antennas are pretty common because they are small and cheap. Can we use them for our projects? How do they work? And: How can we test and tune them? Let’s look at an antenna for the 868915MHz ISM bands. As a sideeffect, you will learn how to measure impedances directly on a PCB.

Links:
LiteVNA (Currently best "NanoVNA"): https://s.click.aliexpress.com/e/_ALJ8bh or https://amzn.to/3IE8cza
IFA explanation video:    • AntennaTheory.com Presents: Analysis...  

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