tuning stub

tuning stub

[′tün·iŋ ‚stəb]
(electromagnetism)
Short length of transmission line, usually shorted at its free end, connected to a transmission line for impedance-matching purposes.
References in periodicals archive ?
The ion cyclotron resonance ring test stand will also test specific high power components such as gas barriers, phase shifters, coaxial switches, tuning stubs, capacitors and directional couplers.
An Axcelis-proprietary designed plasma source, containing no tuning stubs, optimizes the plasma source over the entire operating range.