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Glossary Wireless Communication / Term

Yttrium-iron garnet

(YIG) Yttrium-iron garnet is a synthetic crystalline ferrite containing yttrium and iron (Y3Fe6O16). If a single crystal sphere of YIG is immersed in a magnetic field, and RF energy is coupled into it via a magnetic loop, the crystal will resonate at a frequency linearly proportional to the magnetic field strength. In practical YIG-tuned oscillators and filters, the magnetic field is derived from an electromagnet and the resonant frequency of the YIG sphere is proportional to the current flowing through the magnetic coil.

Permanent link Yttrium-iron garnet - Creation date 2020-06-28


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