Noun
yttrium iron garnet (plural yttrium iron garnets)
(mineralogy) A synthetic mineral used for its special magnetic/optical properties
As an example, Yttrium iron garnet phase shifters must be changed after transmit pulse quench and before receiver processing starts to align transmit and receive beams. Source: Internet
Yttrium iron garnet (YIG) spheres can act as tunable microwave resonators. Source: Internet
Yttrium iron garnet phase shifters vary the phase delay using the strength of a magnetic field. Source: Internet