I'm looking into designing a LORA 868MHz (sf12) product. Ideally, we want the PCB to be 22mm wide, and 80mm high. Antenna on top right. The Grandis arrived to our attention, as a candidate.
According to datasheet, and demo board, 35mm width is recommended, but someone suggested maybe 22 is fine. Can you advice?
Also, we do realize that 80mm is too little, it should ideally be at least ~100mm, right? Is there a general rule on bad this reduction would be?
And thirdly, if we do create prototype boards that are 100mm height, is there a downside on placing all the components closer to the antenna, rather than on the opposite end (as low/far away as possible)? Our thoughts are, that if we can just have a ground plan at the lower half of the board, we could cut the PCB to find out how small we can make it, before it getting too bad.
According to datasheet, and demo board, 35mm width is recommended, but someone suggested maybe 22 is fine. Can you advice?
Also, we do realize that 80mm is too little, it should ideally be at least ~100mm, right? Is there a general rule on bad this reduction would be?
And thirdly, if we do create prototype boards that are 100mm height, is there a downside on placing all the components closer to the antenna, rather than on the opposite end (as low/far away as possible)? Our thoughts are, that if we can just have a ground plan at the lower half of the board, we could cut the PCB to find out how small we can make it, before it getting too bad.
