Issue link: https://iconnect007.uberflip.com/i/1256432
JUNE 2020 I DESIGN007 MAGAZINE 31 enhanced detail can be added in a supplemen- tary note. A typical example of a timeless note on controlled (characteristic) impedance is shown in Figure 3. When readers want a background to add in- sertion loss knowledge to impedance control knowledge, in my opinion, the best approach is to link the existing note to a new note which expands on the next level of knowledge re- quired (Figure 4). Both the above notes stand in their own right, but read together, they broaden the back- ground knowledge and give the reader new to the subject of PCB transmission lines Figure 2: Combined written and video note.