IPC Subgroup
H01P 3/12 Hollow waveguides
Introduced: September 1968
Last revised: January 2006
Full Title
Waveguides; Transmission lines of the waveguide type > Hollow waveguides
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF THE WAVEGUIDE TYPE
4 direct subcodes
Child Classifications
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- H01P 3/123 with a complex or stepped cross-section, e.g. ridged or grooved waveguides
- H01P 3/127 with a circular, elliptic, or parabolic cross-section
- H01P 3/13 specially adapted for transmission of the TE circular-electric mode
- H01P 3/14 flexible