I don’t want to use any fancy materials, regular old FR-4 should work fine here. That means that the RF performance is somewhat non-ideal due to the dielectric, and some due to the quality of the weave. I have chosen…
Author: Oskar Von Heideken
EM simulation – methods
A shallow dive into the different methods that can be used for electromagnetic (EM) simulation, with focus on RF circuit board simulation. Background RF design is a tricky beast to tame, and from my experience working with people in the…
Updates on the CNC laser
Last time I wrote about my CNC laser, the end result was a rats nest of wires, and I’d only tested it briefly. Since then, a lot has happened in other parts of my life, and I found myself with…
Designing and testing a 2.45 GHz 4×4 patch antenna array
I saw a video on youtube a while back, and inspiration struck: “I could make a smaller version of that!”. At the time, I was working as a radio firmware engineer on one of the largest semiconductor companies in the…
Making A Sturdy CNC Laser
I’ve found myself many-a-times wanting a laser, especially for conducting experiments related to printing PCB’s. However, this is not a deep-dive into locally depositing copper onto a substrate from saturated copper sulfate solution using a laser, this is about building…