NVergunst
Member level 1
1/4 wave dipole
Hi, I have never done RF layout before. This is a really simple board but I would like maximum range.
I have a transceiver chip and antenna that are both matched at 50ohms and tuned for 315Mhz. My problem is how to get a trace from chip to antenna with as few problems as possible.
Are there things to consider like corners? Even at 315Mhz? Should the traces be really wide? Really narrow? Really straight? Parallel/Perpendicular to actual antenna? Thickness (z-direction) of copper?
Also reading some application notes they suggest a large ground plane. My antenna will be connected on a right angle near the edge of the board. I realize this will give it some directionality which will decrease range in some directions. This also means it is parallel to the board itself. Because of this I have read that the ground plane has to be a certain length (or rather multiple of some length). So do I go off of the wavelength of a 315Mhz signal an make the ground plane some multiple of that? Or does it have to match the antenna more then the raw wavelength?
Thanks to anyone that can help.
Hi, I have never done RF layout before. This is a really simple board but I would like maximum range.
I have a transceiver chip and antenna that are both matched at 50ohms and tuned for 315Mhz. My problem is how to get a trace from chip to antenna with as few problems as possible.
Are there things to consider like corners? Even at 315Mhz? Should the traces be really wide? Really narrow? Really straight? Parallel/Perpendicular to actual antenna? Thickness (z-direction) of copper?
Also reading some application notes they suggest a large ground plane. My antenna will be connected on a right angle near the edge of the board. I realize this will give it some directionality which will decrease range in some directions. This also means it is parallel to the board itself. Because of this I have read that the ground plane has to be a certain length (or rather multiple of some length). So do I go off of the wavelength of a 315Mhz signal an make the ground plane some multiple of that? Or does it have to match the antenna more then the raw wavelength?
Thanks to anyone that can help.