Rapid Prototyping RF Filters with Tape & QUCS

A guide to simulating microstrip filters in QUCS and prototyping them with copper tape on blank FR4 sheets. These super-cheap materials are good up to a couple gigahertz, as you'll see in the video. Following a quick real-time demonstration, I simulate and build 2 microstrip filters, a 1GHz stepped-impedance LPF, and a 10GHz end-coupled BPF. 2:05 - 1/4 wavelength stub build & tests 3:46 - Radial stub build & tests 4:18 - Stepped impedance microstrip LPF design 6:42 - Stepped impedance microstrip LPF build