Hello,
I'm working on a way to clip over some RS485 wires and read off a copy of whats being sent over the bus, by lying spaced wires over antennas, (Its for diagnostics)
The better performing options I've found for other applications (CANBUS), use a meander antenna, but I cant find very much information on it for this kind of application (wire sitting directly on top of the antenna) and could use some pointers on what I should focus on to optimise how much signal I can extract
The example antenna I found was for edge rates around 30-40V/us, gets fed into a differential amplifier that then gets fed to some schmidt triggers, I also expect I need to manage some kind of filtering to get a rough bandpass between 9.6KHz and under 10Mhz,
Dimensions of the existing example I can find is 0.2mm trace, 0.5mm pitch, 5mm wide, 22mm long per wire, with a 1mm exclusion of the ground plane,
Thank you for any input or suggestions,