Distance of RFID antenna?

Wireless & IoT
1

I’ve got a small project I’m working on and I’d like to keep everything as condensed as possible. I used the ID-3LA RFID receiver.

I’ve built my antenna at about ~145mm diameter and I only get about 50mm range out of it, I’m aiming for about 100mm. I’ve reduced the number of coils until I got a reading, then kept reducing it until I started to get less of a reading. My range peaked at about 50-60mm. My Arduino unit and a couple other small components are fairly close (60-70mm) to the antenna which I’m assuming could be reducing my range.Could this be my reason of such a short range sensing range? I’ve read other people claim to get 150-180mm range easily.

2

I think its about increasing the broadcast power more so than antenna design. You can use any of the standard antennas as reference for increasing the read distance.

3

antenna gain is far more important than small changes in transmitter power. Antenna gain brings the same benefits if used at either end of the link.

A good antenna needs to be purchased, not DIY, as a rule.