A simple RF switch using bipolar transistors
I am currently working on a project that requires me to switch signals in the range of 1-30MHz. I could probably get away with using regular relays, but they’d be rather noisy as I have about 10 signals that need to be switched at the same time. Reed relays would be more quiet, but they can be rather expensive and often have only one contact. I also wanted to avoid any special ICs such as off-the-shelf RF switches or PIN-diodes…