IPC Subgroup
H01P 1/215 using ferromagnetic material
Introduced: January 1980
Last revised: January 2006
Full Title
Auxiliary devices > Frequency-selective devices, e.g. filters > using ferromagnetic material
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE
2 direct subcodes
Child Classifications
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- H01P 1/217 the ferromagnetic material acting as a tuning element in resonators
- H01P 1/218 the ferromagnetic material acting as a frequency selective coupling element, e.g. YIG-filters