Re: Fried Ch0 S11 port #hardware
It's not the RFID reader that caused the problem, it's the antenna I'm designing. And these antennas are just a stack of sheet metal and spacers, all of the right dimensions of course. I need the VNA to tune the antenna to the exact frequency and impedance I need. Adhesive copper foil, a sharp knife and lots of experience is all you need.toggle quoted messageShow quoted text
I'm not sure what would happen if I put a 1W RFID transmitter directly at the input, I would probably fry some tiny resistors ;). By the way, RFID is of course well regulated for safety. The output power from the antenna is limited to 2W ERP in Europe. Safe distance is around 25 cm.
Op 30-11-2020 om 11:28 schreef Stephen Laurence:
Thankyou. I am learning all the time (got to keep a 70yr old brain alive somehow).