Dirty little secret time: although amateur radio operators talk a good game about relishing the technical challenge of building their...
PCB
As NFC chips proliferate, so do the antennas they require for operation, and since many NFC-enabled items are single-use, this...
Yagi-Uda antennas, or simply “Yagis”, are directional antennas that focus radio waves to increase gain, meaning that the radio waves...
HF radios often use toroidal transformers and winding them is a rite of passage for many RF hackers. received a...
he microstrip antenna is a convenient, planar, easy-to-fabricate antenna with some attractive attributes and features, as well as some distinct...
We have all seen Printed Circuit Board (PCB) antennas: those squiggly bits of traces on PCBs connected often to a...
Hi, my name is Dan and I’m a crimpoholic. Honestly, I didn’t know I was a serial abuser of crimping...
Old radios didn’t have much in the way of smarts. But as digital synthesis became more common, radios often had...
It is an age-old problem. You have a 2.5 GHz source and you want it at 5 GHz. You need...
We like regenerative receivers. They perform well and they are dead simple to create. Example? modified a few existing designs...