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GLOSSARY
Al-Y-Fe garnet (Al-YIG)
Ferromagnetic garnets have the same crystalline structure as natural garnets. They are used in communication equipment. Magnetic loss in the micro-wave region and energy loss due to mechanical vibration at high frequencies are very small. Since AI-YIG single crystals have magnetic resonance of very narrow width and loss is negligible they can be applied very successfully to microwave filters.