varactor
/ˈvɛər.æk.tər/
Definition
A semiconductor device acting as a voltage-controlled capacitor, frequently used in microwave circuits for tuning frequencies.
Etymology
The word is a portmanteau derived from 'variable' and 'reactor' (or 'capacitor'). It entered electronics terminology in the mid-20th century to describe a device whose reactance varies based on the voltage applied to it.
In the news
The article discusses the development of new materials to improve varactor performance, specifically aiming to reduce energy loss at microwave frequencies while maintaining necessary voltage tunability. This is vital for advancing the efficiency and effectiveness of modern high-frequency communication systems.
Deep physics, materials science enhance dielectrics, varactors
Read the full article ↗EDN - Voice of the Engineer